fix(o11y): do not record error.type in successful runs #572

Job	Run time
filter	1m 2s
build (17)	14m 32s
build(25) except self-service clients	12m 46s
build (11)	13m 42s
build(8) except for gapic-generator-java	4m 0s
showcase (17)	10m 15s
dependency_analyzer_unit_test	1m 18s
showcase (21)	10m 25s
build(8) for showcase	9m 32s
build(21) except self-service clients	12m 23s
unmanaged_dependency_check	7m 6s
build(8) for gapic-generator-java	10m 59s
showcase (25)	10m 19s
showcase (11)	10m 16s
gapic-generator-java-bom	2m 4s
showcase-clirr	5m 50s
	2h 16m 29s

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