doc: updated contributors file

Signed-off-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: bot-go-openapi[bot]

CONTRIBUTORS.md

@@ -4,10 +4,10 @@
 
 | Total Contributors | Total Contributions |
 | --- | --- |
-| 1  | 18  |
+| 1  | 19  |
 
 | Username | All Time Contribution Count | All Commits |
 | --- | --- | --- |
-| @fredbi | 18 | https://github.com/go-openapi/ci-workflows/commits?author=fredbi |
+| @fredbi | 19 | https://github.com/go-openapi/ci-workflows/commits?author=fredbi |
 
  _this file was generated by the [Contributors GitHub Action](https://github.com/github/contributors)_