chore(ci): use checkout@v3

Author: AhsanAyaz

.github/workflows/test.yml

@@ -10,15 +10,15 @@ jobs:
   build_and_test_action: # make sure build/ci work properly
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v3
     - run: |
         npm install
         npm run all
 
   test_demo_app: # run the demo app's unit tests
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v3
     - run: |
         npm install
         npm run test:ci
@@ -27,7 +27,7 @@ jobs:
   test_action_and_deploy_demo: # make sure the action works on a clean machine without building
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v3
     - name: 'Deploy demo app using action'
       uses: ./
       with: