feat: mutator support for generic superclasses #45

Job	Run time
build_release (macos-14, macos)	7m 21s
build_release (windows-2022, windows)	4m 31s
build_release (ubuntu-22.04-arm, linux-arm64)	2m 30s
build_release (ubuntu-22.04, linux-x86-64)	2m 59s
create_release	8s
merge_jars	2m 7s
maven_deploy	3m 51s
	23m 27s

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