[receiver/prometheusreceiver] Link changelog to issue #49893

Assisted-by: GitHub Copilot

Author: shubhgupta2104

.chloggen/fix-prometheusreceiver-bucketless-nhcb.yaml

@@ -4,6 +4,6 @@ component: receiver/prometheus
 
 note: Prevent the Prometheus receiver from dropping bucketless classic histograms when `convert_classic_histograms_to_nhcb` is enabled.
 
-issues: [22070]
+issues: [49893]
 
 change_logs: [user]