impl(o11y): introduce error attributes #17116

Job	Run time
generate-readme	1m 10s
gitignore_correctness	1m 0s
owlbot-yaml	1m 1s
owlbot-py	1m 12s
root-pom	1m 54s
package_name_check	1m 1s
gapic-bom	1m 41s
group_id_check_for_maps_libraries	7m 43s
	16m 42s

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