Tooling: try fixing cache errors

.github/actions/setup-woocommerce-monorepo/action.yml

@@ -26,7 +26,7 @@ runs:
           run: |
               echo "PNPM_STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV
         - name: 'Cache PNPM Dependencies'
-          uses: 'actions/cache@v4'
+          uses: 'actions/cache@ab5e6d0c87105b4c9c2047343972218f562e4319'
           with:
             path: ${{ env.PNPM_STORE_PATH }}
             key: "${{ runner.os }}-pnpm-${{ hashFiles( '**/pnpm-lock.yaml' ) }}"
@@ -45,7 +45,7 @@ runs:
               coverage: 'none'
         - name: 'Cache Composer Dependencies'
           if: ${{ inputs.php-version != 'false' }}
-          uses: 'actions/cache@v4'
+          uses: 'actions/cache@ab5e6d0c87105b4c9c2047343972218f562e4319'
           with:
               path: '~/.cache/composer/files'
               key: "${{ runner.os }}-composer-${{ hashFiles( '**/composer.lock' ) }}"