Shift LanguageFeature.ErrorAboutDataClassCopyVisibilityChange to 2.2

KT-11914

Some stats:
- Usages of `@ConsistentCopyVisibility` https://github.com/search?q=%22%40ConsistentCopyVisibility%22+lang%3AKotlin&type=code&p=1
  Right now, there are 225 files
- Usages of `-Xconsistent-data-class-copy-visibility` https://github.com/search?q=%22-Xconsistent-data-class-copy-visibility%22+lang%3AKotlin&type=code&p=1
  Right now, there are 60 files
- Usages of `@ExposedCopyVisibility` https://github.com/search?q=%22%40ExposedCopyVisibility%22+lang%3AKotlin&type=code&p=1
  Right now, there are 59 files

Reasons to shift it:
- The LC ticket is not approved yet
- It feels like a big breaking change
- The breaking change is not local, it affects declarations
- Only 3 months passes since the release of 2.0.20 (where the warning
  was introduced) till release of 2.1
- People migrate to 2.0 not as fast as they did to previous versions.
  There is a hypothesis, that more than usual amount of users will be
  migrating from K1 straight to 2.1

compiler/util/src/org/jetbrains/kotlin/config/LanguageVersionSettings.kt

@@ -324,7 +324,6 @@ enum class LanguageFeature(
     ProhibitTypealiasAsCallableQualifierInImport(KOTLIN_2_1, kind = BUG_FIX), // KT-64350
     ProhibitConstructorAndSupertypeOnTypealiasWithTypeProjection(KOTLIN_2_1, kind = BUG_FIX), // KT-60305
     JsExternalPropertyParameters(KOTLIN_2_1), // KT-65965
-    ErrorAboutDataClassCopyVisibilityChange(KOTLIN_2_1, kind = BUG_FIX), // KT-11914 Deprecation phase 2
     CorrectSpecificityCheckForSignedAndUnsigned(KOTLIN_2_1, kind = OTHER), // KT-35305
     AllowAccessToProtectedFieldFromSuperCompanion(KOTLIN_2_1), // KT-39868
     CheckLambdaAgainstTypeVariableContradictionInResolution(KOTLIN_2_1, kind = OTHER), // KT-58310
@@ -350,6 +349,7 @@ enum class LanguageFeature(
 
     // 2.2
 
+    ErrorAboutDataClassCopyVisibilityChange(KOTLIN_2_2, kind = BUG_FIX), // KT-11914 Deprecation phase 2
     BreakContinueInInlineLambdas(KOTLIN_2_2), // KT-1436
     UnstableSmartcastOnDelegatedProperties(KOTLIN_2_2, kind = BUG_FIX), // KT-57417
     ReferencesToSyntheticJavaProperties(KOTLIN_2_2), // KT-8575