Improved error logs for missing 'using' configuration in metadata file (#2052)

Co-authored-by: Octavia Stancu <avastancu@Octavias-MBP.home>

src/Test/TestData/composite_action_without_using_token.yml

@@ -0,0 +1,9 @@
+name: "composite action"
+description: "test composite action without value for the 'using' token in 'runs'"
+
+runs:
+  steps:
+    - id: mystep
+      shell: bash
+      run: |
+        echo "hello world"