write the scm_revision_output to the project path instead of /tmp

see: https://github.com/ansible/ansible-tower/issues/7558

awx/main/tasks.py

@@ -1307,7 +1307,7 @@ class RunProjectUpdate(BaseTask):
             }
         }
         '''
-        handle, self.revision_path = tempfile.mkstemp(dir=settings.AWX_PROOT_BASE_PATH)
+        handle, self.revision_path = tempfile.mkstemp(dir=settings.PROJECTS_ROOT)
         self.cleanup_paths.append(self.revision_path)
         private_data = {'credentials': {}}
         if project_update.credential:

awx/main/tests/unit/test_tasks.py

@@ -181,6 +181,8 @@ class TestJobExecution:
     EXAMPLE_PRIVATE_KEY = '-----BEGIN PRIVATE KEY-----\nxyz==\n-----END PRIVATE KEY-----'
 
     def setup_method(self, method):
+        if not os.path.exists(settings.PROJECTS_ROOT):
+            os.mkdir(settings.PROJECTS_ROOT)
         self.project_path = tempfile.mkdtemp(prefix='awx_project_')
         with open(os.path.join(self.project_path, 'helloworld.yml'), 'w') as f:
             f.write('---')
@@ -1124,6 +1126,7 @@ class TestProjectUpdateCredentials(TestJobExecution):
             settings.PROJECTS_ROOT,
             settings.PROJECTS_ROOT,
         ]) in ' '.join(args)
+        assert '"scm_revision_output": "/projects/tmp' in ' '.join(args)
 
     def test_username_and_password_auth(self, scm_type):
         ssh = CredentialType.defaults['ssh']()