Iterate through and print each output variable used in action

.github/workflows/c_lint.yaml

@@ -21,5 +21,7 @@ jobs:
         if: ${{steps.linter.outputs.clang-format-checks-failed}}
         run: |
            echo "Linter errors occurred, failing the job."
-           echo "${{steps.linter.outputs.*}}"
+           for out in ${{steps.linter.outputs.*}}; do
+             echo "$out"
+           done
            exit 1 # This will cause the step to fail