Loader invalid plugin nicer error (#52754)

* stop processing invalid plugins

(cherry picked from commit 514b974182)

changelogs/fragments/skip_invalid_plugin.yml

@@ -0,0 +1,2 @@
+bugfixes:
+    - skip invalid plugin after warning in loader

lib/ansible/plugins/loader.py

@@ -490,6 +490,7 @@ class PluginLoader:
                     module = self._load_module_source(name, path)
                 except Exception as e:
                     display.warning("Skipping plugin (%s) as it seems to be invalid: %s" % (path, to_text(e)))
+                    continue
                 self._module_cache[path] = module
                 found_in_cache = False