fix: remove fetch depth

Author: 0marperez

.github/workflows/release-readiness.yml

@@ -16,7 +16,6 @@ jobs:
         with:
           path: 'aws-sdk-kotlin'
           ref: '${{ github.head_ref }}'
-          fetch-depth: 0
 
       - name: Configure Gradle
         uses: awslabs/aws-kotlin-repo-tools/.github/actions/configure-gradle@main