fix: Fix kafka topic default (#3350)

should be ingest-performance-metrics not ingest-generic metrics

INC-696

---------

Co-authored-by: Joris Bayer <joris.bayer@sentry.io>

CHANGELOG.md

@@ -20,7 +20,7 @@
 - Implement volume metric stats. ([#3281](https://github.com/getsentry/relay/pull/3281))
 - Scrub transactions before enforcing quotas. ([#3248](https://github.com/getsentry/relay/pull/3248))
 - Implement metric name based cardinality limits. ([#3313](https://github.com/getsentry/relay/pull/3313))
-- Kafka topic config supports default topic names as keys. ([#3282](https://github.com/getsentry/relay/pull/3282))
+- Kafka topic config supports default topic names as keys. ([#3282](https://github.com/getsentry/relay/pull/3282), [#3350](https://github.com/getsentry/relay/pull/3350))
 - Set all span tags on the transaction span. ([#3310](https://github.com/getsentry/relay/pull/3310))
 - Emit outcomes for user feedback events. ([#3026](https://github.com/getsentry/relay/pull/3026))
 - Collect duration for all spans. ([#3322](https://github.com/getsentry/relay/pull/3322))

relay-kafka/src/config.rs

@@ -102,7 +102,7 @@ pub struct TopicAssignments {
     #[serde(alias = "metrics", alias = "ingest-metrics")]
     pub metrics_sessions: TopicAssignment,
     /// Topic name for all other kinds of metrics. Defaults to the assignment of `metrics`.
-    #[serde(alias = "metrics_transactions", alias = "ingest-generic-metrics")]
+    #[serde(alias = "metrics_transactions", alias = "ingest-performance-metrics")]
     pub metrics_generic: TopicAssignment,
     /// Stacktrace topic name
     pub profiles: TopicAssignment,