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

@@ -4,12 +4,12 @@
 
 | Total Contributors | Total Contributions |
 | --- | --- |
-| 38  | 388  |
+| 38  | 391  |
 
 | Username | All Time Contribution Count | All Commits |
 | --- | --- | --- |
 | @casualjim | 191 | https://github.com/go-openapi/spec/commits?author=casualjim |
-| @fredbi | 86 | https://github.com/go-openapi/spec/commits?author=fredbi |
+| @fredbi | 89 | https://github.com/go-openapi/spec/commits?author=fredbi |
 | @pytlesk4 | 26 | https://github.com/go-openapi/spec/commits?author=pytlesk4 |
 | @kul-amr | 10 | https://github.com/go-openapi/spec/commits?author=kul-amr |
 | @keramix | 10 | https://github.com/go-openapi/spec/commits?author=keramix |