Allow to enable allRules = true and buildUponDefaultConfig = true

[BraisGabin]

This PR adds again #6844 because it was reverted in #7053. I have no idea how CI didn't catch that problem because it wasn't related with any other PR. It was a regression. There was a missing unit test and the functional test didn't run.

This PR is the same as #6844 except for the last commit.

The problem was that when the user doesn't defines a configuration we should use the default configuration. Even if the user defines buildUponDefaultConfig = false.

[codecov]

Codecov Report

Attention: Patch coverage is 90.00000% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 83.67%. Comparing base (9cfe9f2) to head (b26aec0).

Files	Patch %	Lines
...ab/arturbosch/detekt/core/config/AllRulesConfig.kt	75.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #7054      +/-   ##
============================================
+ Coverage     83.62%   83.67%   +0.04%     
- Complexity     3938     3942       +4     
============================================
  Files           578      578              
  Lines         12147    12133      -14     
  Branches       2517     2508       -9     
============================================
- Hits          10158    10152       -6     
+ Misses          733      730       -3     
+ Partials       1256     1251       -5     

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