ci: fix paths for sonar checks #17125

Job	Run time
generate-readme	1m 8s
root-pom	1m 42s
package_name_check	1m 2s
group_id_check_for_maps_libraries	7m 20s
owlbot-yaml	1m 6s
gapic-bom	1m 45s
owlbot-py	1m 13s
gitignore_correctness	1m 5s
	16m 21s

Provide feedback