Update contributor-assistant/github-action action to v2.6.0 (#854)

| datasource  | package                             | from   | to     |
| ----------- | ----------------------------------- | ------ | ------ |
| github-tags | contributor-assistant/github-action | v2.5.1 | v2.6.0 |

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/f5-cla.yml

@@ -28,7 +28,7 @@ jobs:
     steps:
       - name: Run F5 Contributor License Agreement (CLA) assistant
         if: (github.event.comment.body == 'recheck' || github.event.comment.body == 'I have hereby read the F5 CLA and agree to its terms') || github.event_name == 'pull_request_target'
-        uses: contributor-assistant/github-action@f41946747f85d28e9a738f4f38dbcc74b69c7e0e # v2.5.1
+        uses: contributor-assistant/github-action@b1522fa982419e79591a92e1267de463a281cdb7 # v2.6.0
         with:
           # Any pull request targeting the following branch will trigger a CLA check.
           branch: "main"