Bump actions/upload-artifact from 3 to 4 (#37)

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

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

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

.github/workflows/build.yml

@@ -50,13 +50,13 @@ jobs:
           keystore_password: ${{ secrets.PLUGINS_JARSIGNER_KEYSTORE_PASSWORD }}
 
       - name: Upload Build Artifacts [API]
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ github.event.repository.name }}-API
           path: ${{ env.DEPLOYMENT_ARTIFACT_DIR }}/${{ env.DEPLOYMENT_ARTIFACT_SELECTOR }}
 
       - name: Upload Build Artifacts [Plugin]
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ github.event.repository.name }}
           path: ${{ env.PLUGIN_ARTIFACT_DIR }}/${{ env.PLUGIN_ARTIFACT_SELECTOR }}