ci(dependabot): fix CLA failure in regen workflow (#1707)

Use a real contributor identity in the git commit config so
the Signed-off-by trailer satisfies EasyCLA. Using
tekton-robot@users.noreply.github.com caused the bot account
to be flagged as an unsigned CLA signer.


Assisted-by: Claude Sonnet 4.6 (via Cursor)

Signed-off-by: Jawed khelil <jkhelil@redhat.com>
Co-authored-by: Cursor <cursoragent@cursor.com>

Author: jkhelil

.github/workflows/dependabot-regen.yml

@@ -54,8 +54,8 @@ jobs:
           REPOSITORY: ${{ github.repository }}
           RUN_ID: ${{ github.run_id }}
         run: |
-          git config user.name "tekton-robot"
-          git config user.email "tekton-robot@users.noreply.github.com"
+          git config user.name "Jawed khelil"
+          git config user.email "jkhelil@redhat.com"
 
           # Create a new branch
           BRANCH="dependabot-regen-$(date +%Y%m%d-%H%M%S)"