chore: 2nd try - simplify python dependencies (#27505)

.github/workflows/pre-commit.yml

@@ -26,24 +26,9 @@ jobs:
           persist-credentials: false
           submodules: recursive
       - name: Setup Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: ${{ matrix.python-version }}
-          cache: "pip"
-          cache-dependency-path: |
-            requirements/base.txt
-            requirements/integration.txt
-      - name: Install dependencies
-        uses: ./.github/actions/cached-dependencies
-        with:
-          run: |
-            apt-get-install
-            pip-upgrade
-            pip install wheel
-            pip install -r requirements/base.txt
-            pip install -r requirements/integration.txt
-      # Add brew to the path - see https://github.com/actions/runner-images/issues/6283
+        uses: ./.github/actions/setup-backend/
       - name: Enable brew and helm-docs
+        # Add brew to the path - see https://github.com/actions/runner-images/issues/6283
         run: |
           echo "/home/linuxbrew/.linuxbrew/bin:/home/linuxbrew/.linuxbrew/sbin" >> $GITHUB_PATH
           eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"