Run on all PR triggers

Ensures the PR version of the repo is used

Signed-off-by: Cristian Le <[email protected]>

.github/workflows/preview.yaml

@@ -1,8 +1,6 @@
 name: readthedocs/actions
 on:
-  pull_request_target:
-    types:
-      - opened
+  pull_request:
 
 permissions:
   pull-requests: write
@@ -11,6 +9,8 @@ jobs:
   pull-request-links:
     runs-on: ubuntu-latest
     steps:
-      - uses: ./preview
+      - uses: actions/checkout@v3
+      - name: Run action preview
+        uses: ./preview
         with:
           project-slug: "readthedocs-preview"