Merge pull request #60 from Kotlin-Android-Open-Source/renovate/actions-checkout-3.x

Update actions/checkout action to v3

Author: hoc081098

.github/workflows/build.yml

@@ -13,7 +13,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Set up JDK
         uses: actions/setup-java@v3

.github/workflows/gradle-wrapper-validation.yml

@@ -6,5 +6,5 @@ jobs:
     name: "Validation"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: gradle/wrapper-validation-action@v1