Create a metric to track users with newlines in ingested label values #9400
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What this PR does
Creates an experimental, most likely temporary, metric
cortex_distributor_label_values_with_newlines_total
used to track tenants who are sending newlines in their label values.Which issue(s) this PR fixes or relates to
Fixes an internal request
Checklist
CHANGELOG.md
updated - the order of entries should be[CHANGE]
,[FEATURE]
,[ENHANCEMENT]
,[BUGFIX]
.about-versioning.md
updated with experimental features.