chore(deps): bump actions/upload-artifact from 4 to 6

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v6)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/build.yml

@@ -107,7 +107,7 @@ jobs:
 
       - name: Upload Artifacts
         if: github.event_name != 'pull_request'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: ${{ env.PLATFORM }}-artifact
           path: ${{ env.OUTPUT_DIR }}${{ env.PLATFORM }}/

.github/workflows/test.yml

@@ -52,7 +52,7 @@ jobs:
         "--gtest_output=xml:${{ env.TEST_RESULT_FILE_PATH }}"
 
     - name: Upload Test Results
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v6
       with:
         name: gtest-results
         path: ${{ env.TEST_RESULT_FILE_PATH }}