[Fuchsia] Filter out flaking ResourceSchedulerIntegration test.

Bug: 986544
Change-Id: I2ae6d3198a5ec362aa60aa4e76eba86df49f21b5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1715762
Commit-Queue: Wez <wez@chromium.org>
Commit-Queue: Sergey Ulanov <sergeyu@chromium.org>
Auto-Submit: Wez <wez@chromium.org>
Reviewed-by: Sergey Ulanov <sergeyu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#680514}

testing/buildbot/filters/fuchsia.services_unittests.filter

@@ -26,3 +26,6 @@
 
 # https://crbug.com/976319 - Flakily times-out due to virtualization overhead.
 -SimpleURLLoaderTest.OnUploadProgressCallback/*
+
+# https://crbug.com/986544 - Flakes with mismatched state expectations.
+-URLLoaderTest.ResourceSchedulerIntegration