create-deployer: pin expunge vagrant paas-cf ver.

Use the same paas-cf version as was used in vpc terraform step.
This is because expunge vagrant step is directly related to vpc step,
as it is just removing vagrant IP address from SGs, which was added
there in the vpc job.

concourse/pipelines/create-deployer.yml

@@ -413,6 +413,7 @@ jobs:
     serial: true
     plan:
     - get: paas-cf
+      passed: [vpc]
     - get: build-all-trigger
       trigger: true
       passed: [concourse-deploy]