ci: fix paths for sonar checks #17129

Job	Run time
generate-readme	1m 8s
owlbot-py	1m 11s
owlbot-yaml	1m 0s
gapic-bom	1m 42s
root-pom	1m 35s
group_id_check_for_maps_libraries	7m 29s
gitignore_correctness	1m 0s
package_name_check	1m 0s
	16m 5s

Provide feedback