Add working directory

Author: lauzadis

.github/workflows/continuous-integration.yml

@@ -47,6 +47,7 @@ jobs:
           cache: 'gradle'
       - name: Configure Gradle
         uses: awslabs/aws-kotlin-repo-tools/.github/actions/configure-gradle@main
+        working-directory: ./smithy-kotlin
 
       - name: Build and Test on JVM
         working-directory: ./smithy-kotlin