Description of problem:

`tkn pac create repo` is triggered in an empty repo its taking name as .
Workaround

Prerequisites (if any, like setup, operators/versions):

The cwd is empty

Steps to Reproduce

1. git clone git@gitlab.com:xxx/blank.git
2. cd blank
3. git switch --create main
4. tkn-pac create repo

Actual results:

`metadata.name` in `.tekton/pipelinerun.yaml` is `.`

Expected results:

`metadata.name` in `.tekton/pipelinerun.yaml` is valid kubernetes name

Reproducibility (Always/Intermittent/Only Once):

Always

Acceptance criteria: 

Definition of Done:

Build Details:

upstream tkn-pac

$ tkn-pac version
0.28.0

Additional info (Such as Logs, Screenshots, etc):

• Slack discussion: https://redhat-internal.slack.com/archives/CSPS1077U/p1729251885933219