updated actions/upload-artifact to v4 (#2290)

Signed-off-by: Henry Li <[email protected]>

Author: bitscuit

.github/workflows/shell_linter.yml

@@ -27,7 +27,7 @@ jobs:
 
       - name: Upload ShellCheck Results
         if: always()
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: shellcheck-results
           path: shellcheck.xml