update CI (drop Python 3.7, add 3.10/3.11) (#234)

.github/workflows/main.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
     steps:
     - uses: actions/checkout@v2
     - uses: actions/setup-python@v2
@@ -19,9 +19,7 @@ jobs:
     - name: Install requirements 📦
       run: |
         python3 -m pip install --upgrade pip
-        pip3 install "pyproj < 3.3.0"
         pip3 install -r requirements-dev.txt
-        pip3 install "jsonschema==4.17.3"
     - name: Install package 📦
       run: python3 setup.py install
     - name: run tests ⚙️