Sheriff: disable gl_tests_validating on Pixel 2 bots

This disables gl_tests_validating on the android-arm64-proguard-rel bot.
This test suite appears to be failing since the switch from Nexus 5X to
Pixel 2, so this reuses a similar filter to the one which was introduced
during that switch (see https://crrev.com/c/4026806).

Bug: 1399978
Bug: 1034007
Test: None
Change-Id: If4f6bab5411748fc02eee54e785763b95c3773b5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4099367
Reviewed-by: Ben Pastene <[email protected]>
Auto-Submit: Nate Fischer <[email protected]>
Commit-Queue: Ben Pastene <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1082775}
diff --git a/testing/buildbot/test_suite_exceptions.pyl b/testing/buildbot/test_suite_exceptions.pyl
index eebc774a..f39b9597 100644
--- a/testing/buildbot/test_suite_exceptions.pyl
+++ b/testing/buildbot/test_suite_exceptions.pyl
@@ -2208,6 +2208,11 @@
           '--test-launcher-filter-file=../../testing/buildbot/filters/android.emulator_12.gl_tests.filter',
         ],
       },
+      'android-arm64-proguard-rel': {
+        'args': [
+          '--test-launcher-filter-file=../../testing/buildbot/filters/android.arm64_proguard_rel.gl_tests.filter', # https://crbug.com/1034007
+        ],
+      },
       'android-nougat-x86-rel': {
         'args': [
           '--test-launcher-filter-file=../../testing/buildbot/filters/android.emulator_n.gl_tests.filter',