Add the ability to specify K8S/OCP credentials on a Job Template

see: https://github.com/ansible/awx/issues/5735

awx/main/models/credential/__init__.py

@@ -1169,7 +1169,18 @@ ManagedCredentialType(
             'multiline': True,
         }],
         'required': ['host', 'bearer_token'],
-    }
+    },
+    injectors={
+        'file': {
+            'template': '{{ ssl_ca_cert }}'
+        },
+        'env': {
+            'K8S_AUTH_HOST': '{{ host }}',
+            'K8S_AUTH_API_KEY': '{{ bearer_token }}',
+            'K8S_AUTH_VERIFY_SSL': '{{ verify_ssl }}',
+            'K8S_AUTH_SSL_CA_CERT': '{{ tower.filename }}',
+        },
+    },
 )