chore(ci): minor fix

- add actions permission
- add command to install example dependencies

Author: ajimae

.github/workflows/qa.yml

@@ -1,5 +1,9 @@
 name: Qa
 
+permissions:
+  contents: read
+  pull-requests: write
+
 on:
   push:
     branches:
@@ -77,7 +81,10 @@ jobs:
           secrets: ${{ toJSON(secrets) }}
 
       - name: Test (Examples)
-        run: cd examples;yarn test
+        run: |
+          cd examples
+          yarn install --immutable
+          yarn test
 
       - name: Test (Unit)
         run: yarn test:unit