Description of problem:

The documentation states that tkn pac cel supports headers from gosmee --save scripts. With a valid X-Gitlab-Event: Merge Request Hook, the provider should be detected as GitLab and event should resolve to "pull_request"

Prerequisites (if any, like setup, operators/versions):

tkn-pac 0.39.2

Steps to Reproduce

#!/usr/bin/env bash
curl -X POST "http://localhost:8080/" \
  -H "Content-Type: application/json" \
  -H "User-Agent: GitLab/18.7.0-pre" \
  -H "X-Gitlab-Event: Merge Request Hook" \
  -H "X-Gitlab-Instance: https://gitlab.com" \
  -H "X-Gitlab-Token: REDACTED" \
  -d @gitlab_mr.json
 

 echo 'event == "pull_request"' | tkn pac cel -p gitlab \
  -b gitlab-mr.json \
  -H gosmee.sh

Actual results:

Error: unknown X-Gitlab-Event

Expected results:

true