Adds support for toggling support for `pprof` and metrics:
```yaml
gitea:
pprofEnabled: true
metrics:
enabled: true
serviceMonitor:
enabled: true
```
Co-authored-by: josef <[email protected]>
Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/100
Reviewed-by: luhahn <[email protected]>
Reviewed-by: techknowlogick <[email protected]>
Co-authored-by: JosefWN <[email protected]>
Co-committed-by: JosefWN <[email protected]>