"SearchEngineProviderServiceTest.PrivateWindowPrefTestWithNonQwantRegion" failing CI intermittently

[kjozwiak]

SearchEngineProviderServiceTest.PrivateWindowPrefTestWithNonQwantRegion is intermittently failing CI. Example:

23:06:00  [ RUN      ] SearchEngineProviderServiceTest.PrivateWindowPrefTestWithNonQwantRegion
23:06:00  ../../brave/browser/search_engines/search_engine_provider_service_browsertest.cc:85: Failure
23:06:00  Expected equality of these values:
23:06:00    incognito_service->GetDefaultSearchProvider()->data().short_name()
23:06:00      Which is: Google
23:06:00    base::ASCIIToUTF16("test1")
23:06:00      Which is: test1
23:06:00  Stack trace:
23:06:00  #0 0x55cdd024bd19 (/home/ubuntu/workspace/pr-brave-browser-pr7378_update_bre_android_1.19.x-linux/src/out/Release/brave_browser_tests+0x5f53d18)
23:06:00  
23:06:00  [326522:326849:1210/040558.690738:ERROR:media_history_store.cc(372)] Failed to begin the transaction.
23:06:00  [326980:327110:1210/040559.737536:WARNING:sqlite_persistent_store_backend_base.cc(171)] Failed to post task from LoadNelPoliciesAndNotifyInBackground@../../net/extras/sqlite/sqlite_persistent_reporting_and_nel_store.cc:1088 to client_task_runner_.
23:06:00  [  FAILED  ] SearchEngineProviderServiceTest.PrivateWindowPrefTestWithNonQwantRegion, where TypeParam =  and GetParam() =  (1875 ms)