feat(bqjdbc): implement Per connection logging with Context proxy #18770

Job	Run time
generate-readme	1m 17s
owlbot-yaml	1m 2s
owlbot-py	1m 7s
gapic-bom	1m 53s
package_name_check	1m 10s
group_id_check_for_maps_libraries	8m 34s
gitignore_correctness	1m 1s
root-pom	1m 50s
	17m 54s

Provide feedback