Try head.repo.fork

Signed-off-by: Benoit Donneaux <benoit@leastauthority.com>

.forgejo/workflows/jekyll.yaml

@@ -56,7 +56,7 @@ jobs:
           jekyll build --verbose
       - name: Deploy Jekyll site
         id: deploy_site
-        if: forge.repository == 'Tahoe-LAFS/web-landing-page'
+        if: ${{ ! forge.pull_request.head.repo.fork }}
         run: |
           echo '${{ toJson(forge) }}'
           if [ "${{ forge.ref }}" = 'refs/heads/main' ]; then

.forgejo/workflows/jekyll_cleanup.yml

@@ -12,7 +12,7 @@ env:
   WEB_CONTEXT: "/${{ forge.event.pull_request.number }}/"
 jobs:
   jekyll_cleanup:
-    if: forge.repository == 'Tahoe-LAFS/web-landing-page'
+    if: ${{ ! forge.pull_request.head.repo.fork }}
     runs-on: ubuntu-22.04
     permissions:
       pull-requests: read