Review TestRunConfigConfigmaps test in `plain-quarkus`

### What happened?

```
❌ TestRunConfigConfigmaps (2m19.81s)
      config_test.go:133: 
          Timed out after 120.000s.
          Expected
              <string>: 
          to contain substring
              <string>: hello world
```
Follows up #6158 

### Steps to reproduce

_No response_

### Relevant log output

```shell

```

### Camel K version

_No response_