[connector/count] Allow counting by attributes

[djaglowski]

Resolves #18893

[runforesight]

Foresight Summary

    
Major Impacts

TestReceiveLogs ❌ failed 1 times in 6 runs (16% fail rate).

TestReceiveLogs/1_log_event_per_payload_(configured_max_content_length_is_same_as_event_size) ❌ failed 1 times in 6 runs (16% fail rate).

build-and-test duration(32 minutes 17 seconds) has decreased 32 minutes 53 seconds compared to main branch avg(1 hour 5 minutes 10 seconds).

View More Details

⭕  build-and-test-windows workflow has finished in 9 seconds (43 minutes 22 seconds less than main branch avg.) and finished at 11th Mar, 2023.

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Job	Failed Steps	Tests
windows-unittest-matrix	-     🔗	N/A	See Details
windows-unittest	-     🔗	N/A	See Details

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✅  telemetrygen workflow has finished in 1 minute 6 seconds (1 minute less than main branch avg.) and finished at 11th Mar, 2023.

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Job	Failed Steps	Tests
build-dev	-     🔗	N/A	See Details
publish-latest	-     🔗	N/A	See Details
publish-stable	-     🔗	N/A	See Details

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✅  check-links workflow has finished in 1 minute 39 seconds and finished at 11th Mar, 2023.

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Job	Failed Steps	Tests
changed files	-     🔗	N/A	See Details
check-links	-     🔗	N/A	See Details

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✅  changelog workflow has finished in 2 minutes 36 seconds and finished at 11th Mar, 2023.

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Job	Failed Steps	Tests
changelog	-     🔗	N/A	See Details

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✅  load-tests workflow has finished in 7 minutes 10 seconds (6 minutes 10 seconds less than main branch avg.) and finished at 11th Mar, 2023.

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Job	Failed Steps	Tests
loadtest (TestTraceAttributesProcessor)	-     🔗	✅ 3  ❌ 0  ⏭ 0    🔗	See Details
loadtest (TestIdleMode)	-     🔗	✅ 1  ❌ 0  ⏭ 0    🔗	See Details
loadtest (TestMetric10kDPS|TestMetricsFromFile)	-     🔗	✅ 6  ❌ 0  ⏭ 0    🔗	See Details
loadtest (TestTraceNoBackend10kSPS|TestTrace1kSPSWithAttrs)	-     🔗	✅ 8  ❌ 0  ⏭ 0    🔗	See Details
loadtest (TestTraceBallast1kSPSWithAttrs|TestTraceBallast1kSPSAddAttrs)	-     🔗	✅ 10  ❌ 0  ⏭ 0    🔗	See Details
loadtest (TestMetricResourceProcessor|TestTrace10kSPS)	-     🔗	✅ 12  ❌ 0  ⏭ 0    🔗	See Details
loadtest (TestBallastMemory|TestLog10kDPS)	-     🔗	✅ 18  ❌ 0  ⏭ 0    🔗	See Details
setup-environment	-     🔗	N/A	See Details

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✅  prometheus-compliance-tests workflow has finished in 12 minutes 20 seconds (⚠️ 4 minutes 44 seconds more than main branch avg.) and finished at 11th Mar, 2023.

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Job	Failed Steps	Tests
prometheus-compliance-tests	-     🔗	✅ 21  ❌ 0  ⏭ 0    🔗	See Details

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✅  e2e-tests workflow has finished in 14 minutes 45 seconds and finished at 11th Mar, 2023.

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Job	Failed Steps	Tests
kubernetes-test (v1.26.0)	-     🔗	N/A	See Details
kubernetes-test (v1.25.3)	-     🔗	N/A	See Details
kubernetes-test (v1.24.7)	-     🔗	N/A	See Details
kubernetes-test (v1.23.13)	-     🔗	N/A	See Details

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✅  build-and-test workflow has finished in 32 minutes 17 seconds (32 minutes 53 seconds less than main branch avg.) and finished at 13th Mar, 2023.

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Job	Failed Steps	Tests
unittest-matrix (1.19, exporter)	-     🔗	✅ 2484  ❌ 0  ⏭ 0    🔗	See Details
unittest-matrix (1.20, exporter)	-     🔗	✅ 2484  ❌ 0  ⏭ 0    🔗	See Details
unittest-matrix (1.19, other)	-     🔗	✅ 4728  ❌ 0  ⏭ 0    🔗	See Details
unittest-matrix (1.20, other)	-     🔗	✅ 4728  ❌ 0  ⏭ 0    🔗	See Details
unittest-matrix (1.19, receiver-1)	-     🔗	✅ 1940  ❌ 0  ⏭ 0    🔗	See Details
unittest-matrix (1.20, receiver-1)	-     🔗	✅ 1940  ❌ 0  ⏭ 0    🔗	See Details
unittest (1.20)	-     🔗	N/A	See Details
unittest (1.19)	-     🔗	N/A	See Details
cross-compile (darwin, amd64)	-     🔗	N/A	See Details
cross-compile (darwin, arm64)	-     🔗	N/A	See Details
cross-compile (linux, 386)	-     🔗	N/A	See Details
cross-compile (linux, arm)	-     🔗	N/A	See Details
cross-compile (linux, amd64)	-     🔗	N/A	See Details
cross-compile (linux, arm64)	-     🔗	N/A	See Details
cross-compile (linux, ppc64le)	-     🔗	N/A	See Details
cross-compile (windows, 386)	-     🔗	N/A	See Details
cross-compile (windows, amd64)	-     🔗	N/A	See Details
windows-msi	-     🔗	N/A	See Details
build-package (rpm)	-     🔗	N/A	See Details
build-package (deb)	-     🔗	N/A	See Details
publish-stable	-     🔗	N/A	See Details
publish-check	-     🔗	N/A	See Details
publish-dev	-     🔗	N/A	See Details

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[atoulme]

First pass - saw some error messages that need to be differentiated per signal type.

[djaglowski]

This is ready for another review.