flags: fix ownership of password-change-support

Bug: 1134730
Change-Id: Ibe825add4319fa3c821b7c5780812a920e1a573f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2510237Reviewed-by: Milica Selakovic <selakovic@google.com>
Commit-Queue: Elly Fong-Jones <ellyjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#822730}

chrome/browser/flag-metadata.json

@@ -3712,7 +3712,7 @@
   },
   {
     "name": "password-change-support",
-    "owners": [ "selakovic" ],
+    "owners": [ "selakovic@google.com" ],
     "expiry_milestone": 87
   },
   {