Fix CI for forks (#3226)

* Try with a different condition for forks

* Skip danger in forks, the fallback token won't let it write comments in PRs anyway

.github/workflows/danger.yml

@@ -6,15 +6,16 @@ jobs:
   build:
     runs-on: ubuntu-latest
     name: Danger main check
+    # Skip in forks, it doesn't work even with the fallback token
+    if: ${{ github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == 'element-hq/element-x-android' }}
     steps:
       - uses: actions/checkout@v4
       - name: Add SSH private keys for submodule repositories
         uses: webfactory/ssh-agent@v0.9.0
-        if: github.repository == 'element-hq/element-x-android'
         with:
           ssh-private-key: ${{ secrets.ELEMENT_ENTERPRISE_DEPLOY_KEY }}
       - name: Clone submodules
-        if: github.repository == 'element-hq/element-x-android'
+        if: ${{ github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == 'element-hq/element-x-android' }}
         run: git submodule update --init --recursive
       - run: |
           npm install --save-dev @babel/plugin-transform-flow-strip-types