ie. fix below quoting issue:

```
kubectl create secret -n project-with-autodevops-900057eb1ce34399-77 \
  generic production-secret \
  '--from-literal=OPTIONAL_MESSAGE=You' can see this secret \
  -o yaml --dry-run
```

With fix, it should be generating:

```
kubectl create secret -n project-with-autodevops-900057eb1ce34399-77 \
  generic production-secret \
  --from-literal 'OPTIONAL_MESSAGE=You can see this secret' \
  -o yaml --dry-run
```

Call via bash -c, instead of assuming bash

The shell is /bin/sh, so we cannot asssume bash. Hence we use `bash -c`

bash is installed for deploy jobs in a prior step