chore(deps): bump actions/upload-artifact from 4 to 7

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -32,7 +32,7 @@ jobs:
 
       - name: Upload test results
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: backend-test-results
           path: backend/**/TestResults/*.trx
@@ -138,15 +138,15 @@ jobs:
 
       - name: Upload Playwright report on failure
         if: failure()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: playwright-report
           path: frontend/playwright-report
           if-no-files-found: ignore
 
       - name: Upload Playwright traces on failure
         if: failure()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: playwright-test-results
           path: frontend/test-results

.github/workflows/security.yml

@@ -219,7 +219,7 @@ jobs:
           done
 
       - name: Upload SBOMs as workflow artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: sbom-cyclonedx
           path: sbom/

.github/workflows/store-screenshots.yml

@@ -132,7 +132,7 @@ jobs:
           find store/screenshots/_raw/ios -name "*.png" -exec mv {} store/screenshots/_raw/ios/ \;
           ls -la store/screenshots/_raw/ios
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v7
         if: success()
         with:
           name: ios-raw-screenshots
@@ -143,7 +143,7 @@ jobs:
       # contengono gli screenshot dello schermo al momento del fallimento
       # (incl. debug-after-login.png) e la UI hierarchy. Indispensabili per
       # capire perche' un assertVisible fallisce.
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v7
         if: always()
         with:
           name: maestro-debug

.github/workflows/zap-full-auth.yml

@@ -120,7 +120,7 @@ jobs:
 
       - name: Upload ZAP report
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: zap-report
           path: |