Deprecate DefaultContext

[BraisGabin]

I just copy&paste the DefaultContext class in api.internal so we can use it and I deprecated the "public" one. We don't need to expose this. If someone wants to change the behaviour can implement Context directly.

[codecov]

Codecov Report

Merging #4098 (86a9e8c) into main (e0aed91) will decrease coverage by 0.07%.
The diff coverage is 75.00%.

❗ Current head 86a9e8c differs from pull request most recent head 6c6f224. Consider uploading reports for the commit 6c6f224 to get more accurate results

@@             Coverage Diff              @@
##               main    #4098      +/-   ##
============================================
- Coverage     83.58%   83.51%   -0.08%     
- Complexity     3187     3192       +5     
============================================
  Files           459      460       +1     
  Lines          9101     9109       +8     
  Branches       1772     1773       +1     
============================================
  Hits           7607     7607              
- Misses          561      569       +8     
  Partials        933      933              

Impacted Files	Coverage Δ
.../kotlin/io/gitlab/arturbosch/detekt/api/Context.kt	9.09% <0.00%> (-60.91%)	⬇️
...ain/kotlin/io/gitlab/arturbosch/detekt/api/Rule.kt	65.21% <ø> (ø)
.../gitlab/arturbosch/detekt/api/internal/BaseRule.kt	100.00% <ø> (ø)
...b/arturbosch/detekt/api/internal/DefaultContext.kt	85.71% <85.71%> (ø)

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