Use runner-os consistently in integ-tests

.github/workflows/integ-test-dependency-graph.yml

@@ -116,7 +116,11 @@ jobs:
         fi
         
   config-cache:
-    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        os: ${{fromJSON(inputs.runner-os)}}
+    runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout sources
       uses: actions/checkout@v4