[Refactoring]: Stop writing build artifacts to the source directory

[kwvanderlinde]

Describe the problem

Recently, in order to run MapTool from gradle, the :spotlessCheck task is run first. This interferes with the edit-compile-run cycle as we now have to keep perfectly formatted code as we go or else MT won't run.

The improvement you'd like to see

The :configSentryRelease task would be removed in favour of adding a configuration to processResources. The :run task would no longer directly or indirectly depend on :spotlessCheck.

Expected Benefits

Developers will have a nicer time as they can make quick changes and test them out without having to run :spotlessApply first.

This will make the build hygienic as build artifacts won't be written into the src/ directory. Instead, the :processResources task can just "do the right thing" and pull the necessary files directly from /build-resources/ into /build/resources/main/.

Additional Context

The current situation with spotless was introduced in 50cf08dfa to fix the implied task dependency. The suggestion here will avoid the situation that created that original implied dependency.

With this change, devs will have to do a one-time deletion of the stray src/main/resources/sentry.properties file that is hanging around in their source tree.