Add exception for Webview 64 cts tests

Removing this exception added these tests suites
back to the builder.

The CTS tests were updated to execute Android 12
but they have failing tests so they are currently
blocking the android 12 builder.

We will remove this exception after disabling the
appropriate failing tests for Android 12.

Test:
I'm running the try job of android-12-x64-rel to make sure this
unblocks the builder.

Fixes: 1316050
Change-Id: I87bb124bda1b4c61482999d9e0e74bb189c0d5e5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3586431
Reviewed-by: Rakib Hasan <[email protected]>
Commit-Queue: Rupert Wiser <[email protected]>
Cr-Commit-Position: refs/heads/main@{#992657}
diff --git a/testing/buildbot/test_suite_exceptions.pyl b/testing/buildbot/test_suite_exceptions.pyl
index 2d2e373..c708d38 100644
--- a/testing/buildbot/test_suite_exceptions.pyl
+++ b/testing/buildbot/test_suite_exceptions.pyl
@@ -3594,6 +3594,9 @@
     },
   },
   'webview_64_cts_tests': {
+    'remove_from': [
+      'android-12-x64-rel', # crbug.com/1260194
+    ],
     'modifications': {
       'android-pie-arm64-rel': {
         # TODO(crbug.com/1111436): Move this back to walleye if/when additional