ci: workflows permission do not actually exist (#1122)

The `workflows` permission in not mentioned in the github workflows
syntax reference.

Signed-off-by: Luca Zaninotto <luca.zaninotto@secomind.com>

Author: lusergit

.github/workflows/fast-forward.yaml

@@ -33,7 +33,6 @@ jobs:
       pull-requests: write
       # Needs issue permission to post comments on pull request
       issues: write
-      workflows: write
 
     steps:
       - name: Fast forwarding