[proj signing] Fix error message, rename action (#12926)

- Fix out of scope variable in error message in the action plugin
- Rename action plugin from playbook_integrity to verify_project

Refs #12887 which pointed out the out of scope variable

Signed-off-by: Rick Elrod <rick@elrod.me>

awx/playbooks/action_plugins/verify_project.py

@@ -88,7 +88,7 @@ class ActionModule(ActionBase):
         if not os.path.exists(manifest_file):
             return {
                 "failed": True,
-                "msg": f"Expected file not found: {path}",
+                "msg": f"Expected file not found: {manifest_file}",
             }
 
         checksum_file_contents = open(manifest_file, "r").read()

awx/playbooks/project_update.yml

@@ -160,19 +160,17 @@
   name: Perform project signature/checksum verification
   tasks:
     - name: Verify project content using GPG signature
-      playbook_integrity:
+      verify_project:
         project_path: "{{ project_path | quote }}"
         validation_type: gpg
         gpg_pubkey: "{{ gpg_pubkey }}"
-      register: gpg_result
       tags:
         - validation_gpg_public_key
 
     - name: Verify project content against checksum manifest
-      playbook_integrity:
+      verify_project:
         project_path: "{{ project_path | quote }}"
         validation_type: checksum_manifest
-      register: checksum_result
       tags:
         - validation_checksum_manifest