Add spring-boot-starter-parent grpc integration test

[philwebb]

We have configuration in the parent POM but nothing to break the build if it's incorrect of a plugin upgrade breaks things.

[coderamittad]

task

[GollapudiSrikanth]

Hi Team
I can take a look at adding an integration test for this if that works?

My understanding is that this would involve adding a sample project using the spring-boot-starter-parent with gRPC configuration and verifying the build to ensure plugin compatibility.

Please let me know if that aligns with what you had in mind.