Ensure detekt-tooling public API is stable

[3flex]

It seems detekt-tooling should be considered public API. This ensures the API is not accidentally changed.

Modules now checked with the binary compatibility validator:

• detekt-tooling
• detekt-api
• detekt-psi-utils

[codecov]

Codecov Report

Merging #4112 (0e3080c) into main (cbdb460) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main    #4112   +/-   ##
=========================================
  Coverage     83.51%   83.51%           
  Complexity     3186     3186           
=========================================
  Files           461      461           
  Lines          9095     9095           
  Branches       1768     1768           
=========================================
  Hits           7596     7596           
  Misses          570      570           
  Partials        929      929           

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[BraisGabin]

A bit off topic but, should we add detekt-test and detekt-test-utils? For example I use both of those in some custom rules: https://github.com/BraisGabin/detekt-junit-rules/blob/main/build.gradle.kts

I'm not sure because they are used to run the tests. With api compatibility should be enough, right?

[3flex]

should we add detekt-test and detekt-test-utils

I think it's worth having the discussion about which APIs need to be strictly maintained, and which don't. That could be a separate issue/discussion.