impl(o11y): introduce error attributes #290

Job	Run time
filter	59s
downstream-compatibility-spring-generator	10m 46s
downstream-compatibility (java-spanner-jdbc)	3m 13s
downstream-compatibility (java-firestore)	3m 22s
downstream-compatibility (java-storage-nio)	3m 37s
downstream-compatibility (java-bigtable)	8m 11s
downstream-compatibility (java-bigquery)	4m 40s
downstream-compatibility (java-pubsub)	3m 16s
downstream-compatibility (java-spanner)	5m 29s
downstream-compatibility (java-storage)	5m 3s
downstream-compatibility (java-pubsublite)	3m 23s
	51m 59s

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