chore: add generation step for commit #19559

Job	Run time
owlbot-py	1m 20s
group_id_check_for_maps_libraries	9m 6s
package_name_check	1m 14s
owlbot-yaml	1m 15s
gitignore_correctness	1m 15s
generate-readme	38s
gapic-bom	1m 10s
root-pom	1m 10s
	17m 8s

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