CI: Updates CI trigger time (#691)

* ci: add new CI job for testing

* chore: remove unused linting before commit

* ci: update testing CI

* ci: update yarn caching logic

* ci: refacor dependency caching logic in ci files

* ci: update CI trigger time

.github/workflows/ci.yml

@@ -1,11 +1,19 @@
 name: CI
 
 on:
-  push:
-    branches: ["main"]
   pull_request:
-    branches: ["main"]
-  workflow_dispatch:
+    types: [opened, synchronize, reopened, ready_for_review]
+
+  # allow manual triggers
+  workflow_dispatch: {}
+
+# Cancel in progress workflows on pull_requests.
+# https://docs.github.com/en/actions/using-jobs/using-concurrency#example-using-a-fallback-value
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+permissions: read-all
 
 jobs:
   test: