Update org.jetbrains.kotlin to v1.6.20

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.jetbrains.kotlin:kotlin-stdlib-jdk8 (source)	1.6.10 -> 1.6.20
org.jetbrains.kotlin:kotlin-scripting-compiler-embeddable (source)	1.6.10 -> 1.6.20
org.jetbrains.kotlin:kotlin-script-util (source)	1.6.10 -> 1.6.20
org.jetbrains.kotlin:kotlin-gradle-plugin-api (source)	1.6.10 -> 1.6.20
org.jetbrains.kotlin:kotlin-gradle-plugin (source)	1.6.10 -> 1.6.20
org.jetbrains.kotlin:kotlin-compiler-embeddable (source)	1.6.10 -> 1.6.20

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[codecov]

Codecov Report

Merging #4665 (4e26761) into main (e08680a) will decrease coverage by 0.14%.
The diff coverage is n/a.

❗ Current head 4e26761 differs from pull request most recent head 230a5fe. Consider uploading reports for the commit 230a5fe to get more accurate results

@@             Coverage Diff              @@
##               main    #4665      +/-   ##
============================================
- Coverage     84.59%   84.44%   -0.15%     
+ Complexity     3441     3429      -12     
============================================
  Files           492      492              
  Lines         11335    11329       -6     
  Branches       2060     2079      +19     
============================================
- Hits           9589     9567      -22     
  Misses          701      701              
- Partials       1045     1061      +16     

Impacted Files	Coverage Δ
...otlin/io/github/detekt/custom/SpekTestDiscovery.kt	67.21% <ø> (-1.64%)	⬇️
...gitlab/arturbosch/detekt/rules/KtCallExpression.kt	33.33% <ø> (ø)
...tlab/arturbosch/detekt/rules/KtLambdaExpression.kt	70.00% <ø> (ø)
.../gitlab/arturbosch/detekt/rules/KtValueArgument.kt	66.66% <ø> (ø)
...turbosch/detekt/rules/complexity/NamedArguments.kt	82.14% <ø> (ø)
...kt/rules/complexity/ReplaceSafeCallChainWithRun.kt	88.88% <ø> (ø)
...ch/detekt/rules/coroutines/GlobalCoroutineUsage.kt	83.33% <ø> (ø)
...rbosch/detekt/rules/coroutines/InjectDispatcher.kt	81.81% <ø> (ø)
...etekt/rules/coroutines/RedundantSuspendModifier.kt	62.79% <ø> (-2.33%)	⬇️
...sch/detekt/rules/coroutines/SleepInsteadOfDelay.kt	73.33% <ø> (ø)
... and 81 more

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[chao2zhang]

The Github release tag has not been published yet. For now, JetBrains/kotlin@057e7bd has all the release notes

[Goooler]

https://github.com/JetBrains/kotlin/releases/tag/v1.6.20