Merge pull request #9664 from jakemcdermott/fix-cred-plugin-dev

Fix service reference error for cred plugin dev env

SUMMARY
Intended to fix the error I see when running COMPOSE_TAG=devel make docker-compose-credential-plugins:

Reviewed-by: Ryan Petrello <None>

tools/docker-credential-plugins-override.yml

@@ -2,7 +2,7 @@
 version: '2'
 services:
   # Primary Tower Development Container link
-  awx:
+  awx_1:
     links:
       - hashivault
       - conjur