chore: use GH_TOKEN secert in permission check step

when membership of an allowed user is check in permission
check step, actions default token GITHUB_TOKEN is unable
to check permission because it doesn't have org:read
permission so this commit uses GH_TOKEN from secerts to
make it happen.

Signed-off-by: Zaki Shaikh <zashaikh@redhat.com>

Author: zakisk

.github/workflows/e2e.yaml

@@ -135,6 +135,7 @@ jobs:
         if: github.event_name == 'pull_request_target'
         uses: pipelines-as-code/ok-to-test@25881c6245695bd81a22df9f2ebdd9569b420581 # v1
         with:
+          github-token: ${{ secrets.GH_TOKEN }}
           team-slugs: ${{ env.TARGET_TEAM_SLUGS }}
 
       - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6