chore(deps-dev): bump black from 21.5b2 to 21.6b0 (#188)

Bumps [black](https://github.com/psf/black) from 21.5b2 to 21.6b0.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](https://github.com/psf/black/commits)

---
updated-dependencies:
- dependency-name: black
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Pipfile.lock

@@ -39,34 +39,37 @@
         },
         "numpy": {
             "hashes": [
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-                "sha256:35180d82f457f0857963a486c16bd472582f217827c839dcb3a3de298b532f11",
-                "sha256:438129e0d1dd03d235ae25c45b5621888d699935cf5b813d08a0bb2e7221c9d4",
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-                "sha256:63b3d66f5610c61d3d1b47687b99584fdf7734192344814d80f2670e0c7b05ef",
-                "sha256:6ed13704d67934d458abeaacd96079bb8ae5f0ea000765777449e94288590097",
-                "sha256:723fff54844d9c1e01703ed2bc177f892fd89530b7671e8191a639d799cd75b7",
-                "sha256:7ada705e3e9364f874c41fc370c23247f4c1466888dfd61ac5ec9277524928c2",
-                "sha256:80929da75a678433dcc8c79db94eb373408778d17fe9b49c4521501a5923a3e2",
-                "sha256:8b92d27414779f568484c4a0aeddbff8e1fa9d9403cff122161fa25bc94e7f44",
-                "sha256:97faf00577c74a4f4b6304c1b7f6223fb0825d1a7cfaad5601cbeadd8282cd70",
-                "sha256:9abfe8ef4f8898d0448de735a3270de466553b61de8e6ddc31fc8770003fdfa4",
-                "sha256:a1c3737f659085eeaab83e016569368157d8d46d6a3be317c864dadd3c28fa42",
-                "sha256:a3a480ac4077c868124427456c6a64dcb7da12817bd3e770006980a4fd0d2526",
-                "sha256:b58c8c1ea4b80a5cbc756a11e446eec16088ebd9e080e71a64c458f6c07cb3c7",
-                "sha256:da0797286c299c426e5b6cf03ca9e1dab0dace161b64d7a1879c4d15eb12ceba",
-                "sha256:dcc194082d94c45fe8a005861cdce6ec33b51c1dccf2a7e6044b33038b82f579",
-                "sha256:f5e7cd7068df4aa803be68edc7c6fc5e3ed934d53a7ab1f21539fb5925e0172e",
-                "sha256:ff442e4fe6e66019b2070352e0cd6e7dde994ff1267d45343b587ed621e4ec47"
-            ],
-            "version": "==1.21.0rc1"
+                "sha256:09932f5bf0abda5654eda225fd070915942f2c32d9bb6747bd45b66af7a0a9b1",
+                "sha256:29036b6d56ad35f0637ac84af43f9469b39916ed06aa96729767639e3023ef72",
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+                "sha256:4b8e4c37aea928f0d8359ab24b14382de450180e618972d3b9df50848d084db1",
+                "sha256:53e7147d04c75dcf05c3bb38357329d64d4908f403560a1fcb64f7972599c638",
+                "sha256:5a711fbc9bbdb939d082bb856f9812eb3f98a82584ad73eaa924bed6b0695cab",
+                "sha256:5b2752404f6ba22b99617c21dc6c2f15accf61642a5626d239649a96294d8ecb",
+                "sha256:5d4c1b43c84cfe1923dbaed4ef18261a9f7b420983dc209af117c28f32637973",
+                "sha256:74ce56338ff5de5d8b48314a1ec5ebbc2b1c0f9f9d6c00ce1815be0d3f9dcbb4",
+                "sha256:7d98ade9199b15aa8f589b2263d6028364aecd7a9caf426e65ffc1ba921624a5",
+                "sha256:82446d2defd917656c87158a02a7d7e7c03ce8bde9bb39ae5f5b369c5ef561d2",
+                "sha256:8bb0a19f185e8d4fa60bb036cdc9fb4f34c6486e1d30034f6cacb882efa5252a",
+                "sha256:93d0cb1b07511d1b108346975cd34cc1c32b7061fbb574ef4ce8fc8139cce417",
+                "sha256:a0179c7130aa03f9e60cea9a0b0535b2c2b49f486bae724433cf6ac2abac832f",
+                "sha256:a18d4368018f029ea73df53ef801234d2d354e95c32d7890b1102bd2da9857ba",
+                "sha256:a59ce04c77711cab0334591650af628151aa515d11bde905198d4e898bb57315",
+                "sha256:afebef861665eaa2e491894f2269d1941fbfbb8e5acf565a785107dcfc07613d",
+                "sha256:b66b3cdad12d6074ddc46148cefc35c48b0437515c5bf8ce2acd913f486bc257",
+                "sha256:bee549287cf2fcbf8f8e11b024e62f1a22af296cb1b015aa346d58a01cbfb603",
+                "sha256:cb725aae7c31327e642b876e3195b7fe147bb8d14d85f749ac13ab87d9ab5fab",
+                "sha256:ce5b195cbcced7c97429ca0323e2e3a19a503fc9ce0e1fea6c5be55e71214ebf",
+                "sha256:cfb7b67500e6af81a793287ca41912590327051b58da9dc2c0ecb65d35db6ec9",
+                "sha256:e2d6388fe28784301fb8293a14d05a5329a9747fa8e451cc189e5f2ee1f422dd",
+                "sha256:f7a0ed76e49c4ab6c53aa43358aa1d943ea5f61cc71844eca1cad8f00794589e",
+                "sha256:fd11aa1d58b7538076613722a2915d3c3f1c0cd24f674e3194be29729d744dba",
+                "sha256:fec6300b8237aa1c561a8a5fec81ba1bcdf00b622f660897369798a8d57163c4"
+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==1.21.0rc2"
         },
         "python-dateutil": {
             "hashes": [
@@ -114,6 +117,7 @@
                 "sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926",
                 "sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254"
             ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==1.16.0"
         },
         "skyfield": {
@@ -156,17 +160,18 @@
         },
         "black": {
             "hashes": [
-                "sha256:1fc0e0a2c8ae7d269dfcf0c60a89afa299664f3e811395d40b1922dff8f854b5",
-                "sha256:e5cf21ebdffc7a9b29d73912b6a6a9a4df4ce70220d523c21647da2eae0751ef"
+                "sha256:dc132348a88d103016726fe360cb9ede02cecf99b76e3660ce6c596be132ce04",
+                "sha256:dfb8c5a069012b2ab1e972e7b908f5fb42b6bbabcba0a788b86dc05067c7d9c7"
             ],
             "index": "pypi",
-            "version": "==21.5b2"
+            "version": "==21.6b0"
         },
         "click": {
             "hashes": [
                 "sha256:8c04c11192119b1ef78ea049e0a6f0463e4c48ef00a30160c704337586f3ad7a",
                 "sha256:fba402a4a47334742d782209a7c79bc448911afe1149d07bdabdf480b3e2f4b6"
             ],
+            "markers": "python_version >= '3.6'",
             "version": "==8.0.1"
         },
         "mypy-extensions": {
@@ -241,6 +246,7 @@
                 "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b",
                 "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"
             ],
+            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==0.10.2"
         }
     }