Disable cron jobs and private SSH key jobs in forks (#6821)

* Try disabling cron jobs in forks

* Try fixing quality checks

* Try fixing tests and enterprise builds

* Stop using the ssh private key in more quality checks

* Try disabling codecov if there is no token

.github/workflows/sync-sas-strings.yml

@@ -11,7 +11,7 @@ jobs:
   sync-sas-strings:
     runs-on: ubuntu-latest
     # Skip in forks
-    if: ${{ github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == 'element-hq/element-x-android' }}
+    if: ${{ github.event_name != 'pull_request' || github.event.repository.fork != true }}
     # No concurrency required, runs every time on a schedule.
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2