Merge branch '38789-prometheus-graphs-occasionally-have-incorrect-y-scale' into 'master'

Resolve "Prometheus graphs occasionally have incorrect Y scale"

Closes #38789

See merge request gitlab-org/gitlab-ce!14693

app/assets/javascripts/monitoring/stores/monitoring_store.js

@@ -13,7 +13,7 @@ function normalizeMetrics(metrics) {
         ...result,
         values: result.values.map(([timestamp, value]) => ({
           time: new Date(timestamp * 1000),
-          value,
+          value: Number(value),
         })),
       })),
     })),

changelogs/unreleased/38789-prometheus-graphs-occasionally-have-incorrect-y-scale.yml

+---
+title: Fix broken Y-axis scaling in some Prometheus graphs
+merge_request: 14693
+author:
+type: fixed