chore(deps): update github artifact actions to v4

Author: renovate[bot]

.github/workflows/e2e.yml

@@ -19,7 +19,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Download image
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: open-feature-operator-local-${{ github.sha }}
           path: ${{ github.workspace }}
@@ -64,7 +64,7 @@ jobs:
 
       - name: Upload cluster logs
         if: failure()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: e2e-tests
           path: .github/scripts/logs

.github/workflows/pr-checks.yml

@@ -90,7 +90,7 @@ jobs:
         with:
           sarif_file: "trivy-results.sarif"
       - name: Upload image as artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: open-feature-operator-local-${{ github.sha }}
           path: ${{ github.workspace }}/open-feature-operator-local.tar