ci(github): checkout before using custom actions; temporary reduce pythons matrix; cosmetic change in action (name to pip cache step)

Author: hleb-rubanau

.github/actions/setup-python-pip-tox/action.yml

@@ -2,15 +2,15 @@ name: Setup base (checkout, python, pip cache, tox)
 runs:
   using: "composite"
   steps:
-    - uses: actions/checkout@v5
-    - uses: actions/setup-python@v6
-      with:
-        python-version: ${{ inputs.python }}
-    - uses: actions/cache@v4
+    - name: pip cache
+      uses: actions/cache@v4
       with:
         path: |
           ~/.cache/pip
         key: ${{ runner.os }}-pip-${{ inputs.python }}
+    - uses: actions/setup-python@v6
+      with:
+        python-version: ${{ inputs.python }}
     - run: |
         python -m pip -q install --upgrade pip "setuptools==65.6.2"
         pip -q install "tox<4" tox-gh-actions

.github/workflows/main.yml

@@ -11,6 +11,7 @@ jobs:
     continue-on-error: true
     runs-on: ubuntu-latest
     steps:
+    - uses: actions/checkout@v5
     - uses: ./.github/actions/setup-python-pip-tox
       with:
         python: 3.12
@@ -23,12 +24,13 @@ jobs:
         os: [ ubuntu-latest ]
         python: 
           - "3.12"
-          - "3.11"
-          - "3.10"
-          - "3.9.14"
-          - "3.8"
+          #- "3.11"
+          #- "3.10"
+          #- "3.9.14"
+          #- "3.8"
     runs-on: ${{ matrix.os }}
     steps:
+    - uses: actions/checkout@v5
     - uses: ./.github/actions/setup-python-pip-tox
       with:
         python: ${{ matrix.python }}