BLD: Upgrade GitHub actions that use deprecated node12 (skypyproject#612

)

* BLD: Upgrade checkout action to v4

* BLD: Upgrade setup-python action to v4

* BLD: Upgrade codecov-action to v3

.github/workflows/codestyle.yaml

@@ -13,9 +13,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout Repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
     - name: Install Python 3.x
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: 3.x
     - name: Install Dependencies

.github/workflows/compatibility.yaml

@@ -14,15 +14,15 @@ jobs:
         release: [main, latest]
     steps:
     - name: Checkout Repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - if: matrix.release != 'main'
       name: Checkout Release
       run: |
         git checkout tags/$(curl -s https://api.github.com/repos/skypyproject/skypy/releases/${{ matrix.release }} | python -c "import sys, json; print(json.load(sys.stdin)['tag_name'])")
     - name: Install Python ${{ matrix.python }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python }}
     - name: Install Dependencies

.github/workflows/tests.yaml

@@ -40,11 +40,11 @@ jobs:
 
     steps:
     - name: Checkout Repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - name: Install Python ${{ matrix.python }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python }}
     - name: Install Dependencies
@@ -55,4 +55,4 @@ jobs:
         tox -e ${{ matrix.toxenv }} ${{ matrix.toxargs }} -- ${{ matrix.toxposargs }}
     - if: contains(matrix.toxenv, '-cov')
       name: Report Coverage
-      uses: codecov/codecov-action@v1
+      uses: codecov/codecov-action@v3