chore: sync librarian.yaml with generation_config.yaml #19537

Job	Run time
gitignore_correctness	54s
package_name_check	40s
group_id_check_for_maps_libraries	8m 39s
owlbot-yaml	27s
gapic-bom	1m 2s
owlbot-py	39s
generate-readme	33s
root-pom	1m 9s
	14m 3s

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