javadoc jar missing from maven central

## Description as the title ## Configuration **Version:** since 2.21.0 ## Reproduction [2.20.0](https://repo1.maven.org/maven2/org/apache/logging/log4j/log4j-api/2.20.0/): javadoc jar present [2.21.0](https://repo1.maven.org/maven2/org/apache/logging/log4j/log4j-api/2.21.0/): javadoc jar missing