feat(bigquery): added error attributes to span tracing #16733

Job	Run time
generate-readme	1m 15s
owlbot-py	1m 17s
group_id_check_for_maps_libraries	7m 7s
gapic-bom	1m 25s
root-pom	1m 42s
gitignore_correctness	44s
package_name_check	1m 0s
owlbot-yaml	1m 0s
	15m 30s

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