Bug 1956809 - Enable PerformanceEventTiming.interactionId and let it ride the train r=smaug

Differential Revision: https://phabricator.services.mozilla.com/D262586

Author: canova

modules/libpref/init/StaticPrefList.yaml

@@ -3812,7 +3812,7 @@
 # Whether the interactionId will be computed and returned by performance observer*
 - name: dom.performance.event_timing.enable_interactionid
   type: RelaxedAtomicBool
-  value: @IS_NIGHTLY_BUILD@
+  value: true
   mirror: always
 
 # Is support for Element.requestPointerLock enabled?