Bump actions/upload-artifact from 3 to 4 (#234)

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]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/integration-tests.yml

@@ -157,7 +157,7 @@ jobs:
           command: npm run e2e --prefix ${{ matrix.pluginDir }}
 
       - name: Uploading artifacts for tests with expected versions
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         if: steps.has-integration-tests.outputs.DIR == 'true' && steps.expected-version-tests.outcome != 'success' && steps.should-run-expected-latest-tests.outcome == 'success'
         with:
           name: ${{steps.example-name.outputs.PLUGIN_NAME}}-expected-version-tests
@@ -204,7 +204,7 @@ jobs:
           command: npm run e2e --prefix ${{ matrix.pluginDir }}
 
       - name: Uploading artifacts for tests with latest version of Grafana
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         if: steps.has-integration-tests.outputs.DIR == 'true' && steps.latest-version-tests.outcome != 'success' && steps.should-run-expected-latest-tests.outcome == 'success'
         with:
           name: ${{steps.example-name.outputs.PLUGIN_NAME}}-latest-version-tests
@@ -271,7 +271,7 @@ jobs:
 
       - name: Uploading artifacts for tests with canary versions
         if: steps.has-integration-tests.outputs.DIR == 'true' && steps.canary-version-tests.outcome != 'success'
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{steps.example-name.outputs.PLUGIN_NAME}}-canary-version-tests
           path: |