chore(bq jdbc): Add integration test suites #16668

Job	Run time
gitignore_correctness	55s
owlbot-yaml	53s
package_name_check	55s
gapic-bom	1m 36s
owlbot-py	1m 4s
generate-readme	58s
group_id_check_for_maps_libraries	6m 42s
root-pom	1m 38s
	14m 41s

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