fix int tests

.github/workflows/build.yaml

@@ -2,7 +2,6 @@ name: Build Charmed MongoDB rock
 
 on:
   workflow_call:
-  pull_request:
 
 jobs:
   build:

.github/workflows/integration.yaml

@@ -11,7 +11,9 @@ on:
 
 jobs:
   build:
-    uses: ./.github/workflows/build.yaml
+    name: Build rock
+    uses: canonical/data-platform-workflows/.github/workflows/build_rock.yaml@v16
+
   integration:
     runs-on: ubuntu-latest
     timeout-minutes: 120
@@ -41,12 +43,19 @@ jobs:
         run: |
           sudo snap install rockcraft --classic --revision 1206
           sudo snap refresh rockcraft --hold=forever
-      - uses: actions/download-artifact@v3
+      - name: Download rock package(s)
+        uses: actions/download-artifact@v4
         with:
-          name: mongodb-rock
+          pattern: ${{ needs.build.outputs.artifact-prefix }}-*
+          merge-multiple: true
       - name: Install tox
         run: python3 -m pip install tox
 
+      - name: Integration Tests
+        run: |
+          touch requirements.txt
+          sg snap_microk8s -c "tox -e ${{ matrix.env }}"
+
       - name: Free disk space
         run: |
           echo "Free disk space before cleanup"
@@ -59,6 +68,3 @@ jobs:
           sudo rm -rf "$AGENT_TOOLSDIRECTORY"
           echo "Free disk space after cleanup"
           df -T
-      
-      - name: Integration Tests
-        run: sg snap_microk8s -c "tox -e ${{ matrix.env }}"