chore(deps): bump actions/upload-artifact from 3 to 4

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v3...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/build.yml

@@ -61,7 +61,7 @@ jobs:
 
       - name: Upload Test artifacts
         if: always()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: solara-builds-${{ github.run_number }}
           path: |

.github/workflows/integration.yml

@@ -73,7 +73,7 @@ jobs:
         run: pytest tests/integration --timeout=360 --video=retain-on-failure --output=test-results -vv -s --log-cli-level=warning
       - name: Upload Test artifacts
         if: always()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: test-results
           path: test-results

.github/workflows/integration_vue3.yml

@@ -75,7 +75,7 @@ jobs:
         run: pytest tests/integration/widget_test.py --timeout=360 --video=retain-on-failure --output=test-results -vv -s --log-cli-level=warning
       - name: Upload Test artifacts
         if: always()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: test-results
           path: test-results