🐛 fix: : Implement pull_request_target in Github Actions

Replaced 'pull_request' event with 'pull_request_target' event in Github Actions config file to enable actions to run on PRs from forked repositories. This change allows access to secrets in the workflows triggered by such PRs. Security considerations have been taken into account.

related issue: YJU-OKURA#13

.github/workflows/cr.yml

@@ -5,7 +5,7 @@ permissions:
   pull-requests: write
 
 on:
-  pull_request:
+  pull_request_target:
     types: [opened, synchronize]
 jobs:
   test: