CI Generator - Showcase Tests / showcaseTests failure

[lqiu96]

Seeing error:

[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  22.800 s
[INFO] Finished at: 2024-01-25T00:25:58Z
[INFO] ------------------------------------------------------------------------
fixed /home/runner/work/spring-cloud-gcp/spring-cloud-gcp/spring-cloud-generator/sdk-platform-java/WORKSPACE
fixed /home/runner/work/spring-cloud-gcp/spring-cloud-gcp/spring-cloud-generator/sdk-platform-java/WORKSPACE
fixed /home/runner/work/spring-cloud-gcp/spring-cloud-gcp/spring-cloud-generator/sdk-platform-java/WORKSPACE
/home/runner/work/spring-cloud-gcp/spring-cloud-gcp/spring-cloud-generator/sdk-platform-java/showcase/BUILD.bazel/BUILD: file not found or not readable
Error: Process completed with exit code 2.

in the Verify generation of showcase-spring-starter step.

Example PR: #2542

[zhumin8]

duplicate of #2214