CHANGELOG.md updates for #7630

CHANGELOG.md

@@ -66,6 +66,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - [#7621](https://github.com/apache/trafficcontrol/pull/7621) *Traffic Ops* Use ID token for OAuth authentication, not Access Token
 
 ### Fixed
+- [#7631] (https://github.com/apache/trafficcontrol/pull/7631) *Traffic Ops* Fixes Phys_Location V5 apis to respond with RFC3339 date/time Format
 - [#7623] (https://github.com/apache/trafficcontrol/pull/7623) *Traffic Ops* Removed TryIfModifiedSinceQuery from servicecategories.go and reused from ims.go
 - [#7608](https://github.com/apache/trafficcontrol/pull/7608) *Traffic Monitor* Use stats_over_http(plugin.system_stats.timestamp_ms) timestamp field to calculate bandwidth for TM's caches.
 - [#6318](https://github.com/apache/trafficcontrol/issues/6318) *Docs* Included docs for POST, PUT, DELETE (v3,v4,v5) for statuses and statuses{id}