Test that a deleted secret is re-created by Istio CA (#259)
Test that a deleted secret is re-created by Istio CA (#259)

Automatic merge from submit-queue

Test that a deleted secret is re-created by Istio CA

**Release note**:

```
NONE
```

This fixes #115 

/assign @wattli 
/assign @myidpt
myidpt/auth,crazytan/auth,wattli/auth,crazytan/auth,wattli/auth,myidpt/auth,wattli/auth,istio/old_auth_repo,myidpt/auth,istio/old_auth_repo,crazytan/auth,istio/old_auth_repo