Bump actions/upload-artifact from 6 to 7 (#1082)

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.github/workflows/check_ota_pr.yml

@@ -36,7 +36,7 @@ jobs:
 
                       await checkOtaPR(github, core, context)
 
-            - uses: actions/upload-artifact@v6
+            - uses: actions/upload-artifact@v7
               if: always()
               with:
                   name: pr