chore(deps-dev): bump black from 21.6b0 to 21.7b0

Bumps [black](https://github.com/psf/black) from 21.6b0 to 21.7b0.
- [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>

Pipfile.lock

@@ -39,37 +39,37 @@
         },
         "numpy": {
             "hashes": [
-                "sha256:1a784e8ff7ea2a32e393cc53eb0003eca1597c7ca628227e34ce34eb11645a0e",
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-                "sha256:fd0a359c1c17f00cb37de2969984a74320970e0ceef4808c32e00773b06649d9"
+                "sha256:01721eefe70544d548425a07c80be8377096a54118070b8a62476866d5208e33",
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+                "sha256:88c0b89ad1cc24a5efbb99ff9ab5db0f9a86e9cc50240177a571fbe9c2860ac2",
+                "sha256:8a326af80e86d0e9ce92bcc1e65c8ff88297de4fa14ee936cb2293d414c9ec63",
+                "sha256:8a92c5aea763d14ba9d6475803fc7904bda7decc2a0a68153f587ad82941fec1",
+                "sha256:91c6f5fc58df1e0a3cc0c3a717bb3308ff850abdaa6d2d802573ee2b11f674a8",
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+                "sha256:a75b4498b1e93d8b700282dc8e655b8bd559c0904b3910b144646dbbbc03e062",
+                "sha256:c6a2324085dd52f96498419ba95b5777e40b6bcbc20088fddb9e8cbb58885e8e",
+                "sha256:d7a4aeac3b94af92a9373d6e77b37691b86411f9745190d2c351f410ab3a791f",
+                "sha256:d9e7912a56108aba9b31df688a4c4f5cb0d9d3787386b87d504762b6754fbb1b",
+                "sha256:dff4af63638afcc57a3dfb9e4b26d434a7a602d225b42d746ea7fe2edf1342fd",
+                "sha256:e46ceaff65609b5399163de5893d8f2a82d3c77d5e56d976c8b5fb01faa6b671",
+                "sha256:f01f28075a92eede918b965e86e8f0ba7b7797a95aa8d35e1cc8821f5fc3ad6a",
+                "sha256:fd7d7409fa643a91d0a05c7554dd68aa9c9bb16e186f6ccfe40d6e003156e33a"
             ],
             "markers": "python_version >= '3.7'",
-            "version": "==1.21.0"
+            "version": "==1.21.1"
         },
         "python-dateutil": {
             "hashes": [
@@ -161,11 +161,11 @@
         },
         "black": {
             "hashes": [
-                "sha256:dc132348a88d103016726fe360cb9ede02cecf99b76e3660ce6c596be132ce04",
-                "sha256:dfb8c5a069012b2ab1e972e7b908f5fb42b6bbabcba0a788b86dc05067c7d9c7"
+                "sha256:1c7aa6ada8ee864db745b22790a32f94b2795c253a75d6d9b5e439ff10d23116",
+                "sha256:c8373c6491de9362e39271630b65b964607bc5c79c83783547d76c839b3aa219"
             ],
             "index": "pypi",
-            "version": "==21.6b0"
+            "version": "==21.7b0"
         },
         "click": {
             "hashes": [
@@ -184,10 +184,10 @@
         },
         "pathspec": {
             "hashes": [
-                "sha256:86379d6b86d75816baba717e64b1a3a3469deb93bb76d613c9ce79edc5cb68fd",
-                "sha256:aa0cb481c4041bf52ffa7b0d8fa6cd3e88a2ca4879c533c9153882ee2556790d"
+                "sha256:7d15c4ddb0b5c802d161efc417ec1a2558ea2653c2e8ad9c19098201dc1c993a",
+                "sha256:e564499435a2673d586f6b2130bb5b95f04a3ba06f81b8f895b651a3c76aabb1"
             ],
-            "version": "==0.8.1"
+            "version": "==0.9.0"
         },
         "pytz": {
             "hashes": [
@@ -242,13 +242,13 @@
             ],
             "version": "==2021.7.6"
         },
-        "toml": {
+        "tomli": {
             "hashes": [
-                "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b",
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+                "sha256:0713b16ff91df8638a6a694e295c8159ab35ba93e3424a626dd5226d386057be",
+                "sha256:be670d0d8d7570fd0ea0113bd7bb1ba3ac6706b4de062cc4c952769355c9c268"
             ],
-            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2, 3.3'",
-            "version": "==0.10.2"
+            "markers": "python_version >= '3.6'",
+            "version": "==1.0.4"
         }
     }
 }