CI improvement and clean up (#410)

The test on multiple python versions is useless since the nightly test is inside the container which as one specific python version.
Also, use the new actions for python setup and dependencies cache.

.github/workflows/ci.yml

@@ -13,12 +13,18 @@ jobs:
         runs-on: ubuntu-latest
 
         steps:
-            - uses: actions/checkout@v2
+            - uses: actions/checkout@v3
 
             - name: Setup Python
-              uses: actions/setup-python@v2
+              uses: actions/setup-python@v4
               with:
                   python-version: '3.10'
+                  cache: pip
+                  cache-dependency-path: |
+                      .pre-commit-config.yaml
+                      **/setup.cfg
+                      **/pyproject.toml
+                      **/requirements*.txt
 
             - uses: pre-commit/[email protected]
 
@@ -30,8 +36,7 @@ jobs:
             matrix:
                 tag: [latest]
                 browser: [Chrome, Firefox]
-                python-version: ['3.8', '3.10']
-                firefox: ['96.0']
+                python-version: ['3.10']
             fail-fast: false
 
         runs-on: ubuntu-latest
@@ -40,19 +45,17 @@ jobs:
         steps:
 
             - name: Check out app
-              uses: actions/checkout@v2
+              uses: actions/checkout@v3
 
-            - name: Cache Python dependencies
-              uses: actions/cache@v1
-              with:
-                  path: ~/.cache/pip
-                  key: pip-${{ matrix.python-version }}-tests-${{ hashFiles('**/setup.json') }}
-                  restore-keys: pip-${{ matrix.python-version }}-tests
-
-            - name: Set up Python ${{ matrix.python-version }}
-              uses: actions/setup-python@v2
+            - name: Set up Python
+              uses: actions/setup-python@v4
               with:
                   python-version: ${{ matrix.python-version }}
+                  cache: pip
+                  cache-dependency-path: |
+                      **/setup.cfg
+                      **/pyproject.toml
+                      **/requirements*.txt
 
             - name: Install dependencies for test
               run: |
@@ -66,7 +69,7 @@ jobs:
             - name: Install Firefox
               uses: browser-actions/setup-firefox@latest
               with:
-                  firefox-version: ${{ matrix.firefox }}
+                  firefox-version: '96.0'
               if: matrix.browser == 'Firefox'
 
             - name: Install geckodriver