Unexpire use-search-click-as-right-click flag

Bug: 1129141
Test: manual
Change-Id: I2701c24fc5da4f51bf03fe1edbe038038c2f4c65
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2493360Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Commit-Queue: Zentaro Kavanagh <zentaro@chromium.org>
Cr-Commit-Position: refs/heads/master@{#820035}

chrome/browser/flag-metadata.json

@@ -4686,8 +4686,8 @@
   },
   {
     "name": "use-search-click-for-right-click",
-    "owners": [ "khorimoto", "zentaro" ],
-    "expiry_milestone": 85
+    "owners": [ "zentaro", "cros-peripherals@google.com" ],
+    "expiry_milestone": 95
   },
   {
     "name": "use-serial-bus-enumerator",