fix: do not fail CI on warnings (exit 0 for partial status)

Author: ppiankov

.github/action/entrypoint.sh

@@ -57,8 +57,6 @@ run_checks() {
       exit_code=1
     elif [[ "$status" == "partial" && "$fail_on_warn" == "true" ]]; then
       exit_code=1
-    elif [[ "$status" == "partial" && $exit_code -eq 0 ]]; then
-      exit_code=2
     fi
 
     echo "::endgroup::"