Update expiration of accessibility perf histograms

Bug: 1153721, 1153720
Change-Id: Ib808bb4e00028ba584e2c9de40830ffeb9d78122
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2605568Reviewed-by: Brian White <bcwhite@chromium.org>
Commit-Queue: Dominic Mazzoni <dmazzoni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#840667}

tools/metrics/histograms/histograms_xml/accessibility/histograms.xml

@@ -781,7 +781,7 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="Accessibility.Performance.WinAPIs.{API}" units="microseconds"
-    expires_after="M89">
+    expires_after="M93">
   <owner>dmazzoni@chromium.org</owner>
   <owner>janewman@microsoft.com</owner>
   <owner>chrome-a11y-core@google.com</owner>