CI Test Check for Style guidelines using Spotless plugin

[AlfredoG87]

Description:
Add a CI Test that checks that the spotless check passes, otherwise it will fail and recommend to run the following command:

./gradlew spotlessApply

Related issue(s):

Fixes #31

Notes for reviewer:
Raised another PR with the same exact changes, but added another commit with a modification of style so to force the failure of the check.

see here:
#42
Checklist

• Documented (Code comments, README, etc.)
• Tested (unit, integration, etc.)

[jsync-swirlds]

It might be worth taking a look at services compile checks, particularly the CGroups setup, to see if we can improve this by using their action code/setup as a model. We might also want to include module checks (from the same reference), as a way to ensure the module setup remains clean and consistent.

[AlfredoG87]

It might be worth taking a look at services compile checks, particularly the CGroups setup, to see if we can improve this by using their action code/setup as a model. We might also want to include module checks (from the same reference), as a way to ensure the module setup remains clean and consistent.

Yes. I did take a look at the services, and that specific workflow as a source of inspiration, however implementing everything in there is probably not necessary right now and out of scope of current task.

But I agree that as the Codebase grows and in time, when we have many CI jobs we can use that model and refactor them all into a single CI WF.

But for now, the objective of this CI Test is to protect the style guidelines.

[mattp-swirldslabs]

LGTM