Move the log calls in `internal` onto `logging`, and add what the process-wide logger setup and its tests need: `SetTextFormat` with a line filter for secret masking (replacing `report.MaskingFormatter`), `SetReportCaller`, `SetDefault` and `logtest.SetDefault`. After this only the `logging` package imports logrus.
Stacked on https://gitea.com/gitea/runner/pulls/1301.
Assisted-by: Codet
Co-authored-by: bircni <[email protected]>
Reviewed-on: https://gitea.com/gitea/runner/pulls/1302
Reviewed-by: bircni <[email protected]>
