Bump actions/upload-artifact from 5 to 6 (#966)

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

.github/workflows/check_ota_pr.yml

@@ -36,7 +36,7 @@ jobs:
 
                       await checkOtaPR(github, core, context)
 
-            - uses: actions/upload-artifact@v5
+            - uses: actions/upload-artifact@v6
               if: always()
               with:
                   name: pr