CI: Return to custom cache action

Author: rhaschke

.github/workflows/ci.yaml

@@ -38,24 +38,24 @@ jobs:
       # that comes from the checkout.  See "prepare target_ws for cache" task below
       - name: Cache target workspace
         if: "!matrix.env.CCOV"
-        uses: actions/cache@v4
+        uses: rhaschke/cache@main
         with:
-          save-always: true
           path: ${{ env.BASEDIR }}/target_ws
           key: ${{ env.CACHE_PREFIX }}-${{ github.run_id }}
           restore-keys: ${{ env.CACHE_PREFIX }}
         env:
+          GHA_CACHE_SAVE: always
           CACHE_PREFIX: target_ws-${{ matrix.env.IMAGE }}-${{ hashFiles('**/CMakeLists.txt', '**/package.xml') }}
       - name: Cache ccache
-        uses: actions/cache@v4
+        uses: rhaschke/cache@main
         with:
-          save-always: true
           path: ${{ env.CCACHE_DIR }}
           key: ${{ env.CACHE_PREFIX }}-${{ github.sha }}-${{ github.run_id }}
           restore-keys: |
             ${{ env.CACHE_PREFIX }}-${{ github.sha }}
             ${{ env.CACHE_PREFIX }}
         env:
+          GHA_CACHE_SAVE: always
           CACHE_PREFIX: ccache-${{ matrix.env.IMAGE }}
 
       - name: Run industrial_ci