Revert "fix: use checkout sources v4 in codebuild CI"

This reverts commit 6f9e46b.

Author: 0marperez

.github/workflows/codebuild-ci.yml

@@ -79,13 +79,14 @@ jobs:
           echo Please verify the PRs are not running any malicious code and mark the checkbox true when running the workflow
           exit 1
       - name: Checkout sources
-        uses: actions/checkout@v4
+        uses: actions/checkout@v2
       - name: Configure AWS Credentials
         uses: aws-actions/configure-aws-credentials@v4
         with:
           role-to-assume: ${{ secrets.CI_AWS_ROLE_ARN }}
           aws-region: us-west-2
       - name: Configure Gradle
+        working-directory: ./aws-sdk-kotlin
         uses: ./aws-sdk-kotlin/.github/actions/custom-gradle-distribution-url
       - name: Run Service Check Batch and Calculate Artifact Size Metrics
         id: svc-check-batch
@@ -208,13 +209,14 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v4
+        uses: actions/checkout@v2
       - name: Configure AWS Credentials
         uses: aws-actions/configure-aws-credentials@v4
         with:
           role-to-assume: ${{ secrets.CI_AWS_ROLE_ARN }}
           aws-region: us-west-2
       - name: Configure Gradle
+        working-directory: ./aws-sdk-kotlin
         uses: ./aws-sdk-kotlin/.github/actions/custom-gradle-distribution-url
       - name: Calculate Artifact Size Metrics
         id: svc-check-batch