build: add support for Python 3.11

BREAKING CHANGE: Python 3.7 is npt supported anymore.

.github/workflows/tests.yml

@@ -18,10 +18,10 @@ jobs:
           - macos-11.0
           - windows-latest
         python_version:
-          - '3.7'
           - '3.8'
           - '3.9'
           - '3.10'
+          - '3.11'
 
     name: Doc tests (Python ${{ matrix.python_version }} on ${{ matrix.os }})
     steps:

pyproject.toml

@@ -19,7 +19,7 @@ classifiers = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.7,<3.11"
+python = ">=3.8,<3.12"
 skyfield = "^1.21"
 skyfield-data = ">=3,<5"
 python-dateutil = "^2.8"