minimum supported JDK version to run Error Prone is JDK 21 as of Error Prone 2.43.0

[Pankraz76]

Expected Behavior

use Error Prone 2.43.0.

related might later on use:

• https://docs.openrewrite.org/recipes/java/migrate/upgradetojava21
• https://github.com/checkstyle/checkstyle/blob/0500cab4436f0b2759f5797800ef3e0073454a69/rewrite.yml#L15
• [rewrite] bump UpgradeToJava21 #2756

Current Behavior (optional)

No response

Context

• picnic breaking -XepDisableAllWarnings google/error-prone#5365
• minimum supported JDK version to run Error Prone is JDK 21 as of Error Prone 2.43.0 gradle/gradle#35768
• minimum supported JDK version to run Error Prone is JDK 21 as of Error Prone 2.43.0 #2755