RewardsContributionBrowserTest.PanelMonthlyTipAmount fails on CI on Mac

[mkarolin]

RewardsContributionBrowserTest.PanelMonthlyTipAmount fails on CI.

Tried to reproduce it locally, but it succeeds - takes a long time to run though (31sec+ on my machine).
Likely times out on CI in some way.

 [ RUN      ] RewardsContributionBrowserTest.PanelMonthlyTipAmount
 [39457:775:1028/153530.392014:INFO:sparkle_glue.mm(113)] brave update: Failed to load sparkle framework
 [39469:19459:1028/153530.791561:WARNING:address_sorter_posix.cc(388)] FromSockAddr failed on netmask
 [39457:775:1028/153531.863894:WARNING:CONSOLE(1)] "no tab id so cannot request shield data from window focus change!", source: chrome-extension://mnojpmjdmbbfmejpflffifhffcmidifd/out/brave_extension_background.bundle.js (1)
 [39457:775:1028/153532.282603:ERROR:device_event_log_impl.cc(211)] [15:35:32.282] FIDO: touch_id_context.mm:127 Touch ID authenticator unavailable because keychain-access-group entitlement is missing or incorrect
 [39457:775:1028/153533.400234:ERROR:brave_referrals_service.cc(224)] Failed to fetch headers from referral server, error: -102, response code: -1, payload: , url: ****/promo/custom-headers
 [39457:775:1028/153533.415210:ERROR:brave_referrals_service.cc(253)] Failed to initialize referral, error: -102, response code: -1, payload: , url: ****/promo/initialize/nonua
 ../../content/public/test/browser_test_base.cc:702: Failure
 Failed
 RunLoop::Run() timed out.
 Stack trace:
 0   brave_browser_tests                 0x0000000109c8a0f2 brave_browser_tests + 59605234
 1   brave_browser_tests                 0x0000000109ce326f brave_browser_tests + 59970159
 2   brave_browser_tests                 0x0000000109ce4233 brave_browser_tests + 59974195
 3   brave_browser_tests                 0x0000000106a359a3 brave_browser_tests + 6830499
 4   brave_browser_tests                 0x0000000109cfeb96 brave_browser_tests + 60083094
 5   brave_browser_tests                 0x0000000109d1069d brave_browser_tests + 60155549
 6   brave_browser_tests                 0x0000000109d103c8 brave_browser_tests + 60154824
 7   brave_browser_tests                 0x0000000109d53fe1 brave_browser_tests + 60432353
 8   brave_browser_tests                 0x0000000109d4ebf2 brave_browser_tests + 60410866
 9   brave_browser_tests                 0x0000000109d539bf brave_browser_tests + 60430783
 10  CoreFoundation                      0x00007fff34ac5804 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
 11  CoreFoundation                      0x00007fff34ac53be __CFRunLoopDoTimer + 859
 12  CoreFoundation                      0x00007fff34ac4e9e __CFRunLoopDoTimers + 317
 13  CoreFoundation                      0x00007fff34aa9aed __CFRunLoopRun + 2213
 14  CoreFoundation                      0x00007fff34aa8bd3 CFRunLoopRunSpecific + 499
 15  HIToolbox                           0x00007fff335fe65d RunCurrentEventLoopInMode + 292
 16  HIToolbox                           0x00007fff335fe39d ReceiveNextEventCommon + 600
 17  HIToolbox                           0x00007fff335fe127 _BlockUntilNextEventMatchingListInModeWithFilter + 64
 18  AppKit                              0x00007fff31c6eba4 _DPSNextEvent + 990
 19  AppKit                              0x00007fff31c6d380 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1352
 20  brave_browser_tests                 0x000000010a4aae70 brave_browser_tests + 68128368
 21  brave_browser_tests                 0x0000000109d4ebf2 brave_browser_tests + 60410866
 22  brave_browser_tests                 0x000000010a4aada9 brave_browser_tests + 68128169
 23  AppKit                              0x00007fff31c5f09e -[NSApplication run] + 658
 24  brave_browser_tests                 0x0000000109d547cc brave_browser_tests + 60434380
 25  brave_browser_tests                 0x0000000109d53593 brave_browser_tests + 60429715
 26  brave_browser_tests                 0x0000000109d10c8a brave_browser_tests + 60157066
 27  brave_browser_tests                 0x0000000109ce2dce brave_browser_tests + 59968974
 28  brave_browser_tests                 0x00000001064c4436 brave_browser_tests + 1123382
 29  brave_browser_tests                 0x00000001064cdf39 brave_browser_tests + 1163065
 30  brave_browser_tests                 0x0000000109b74d9d brave_browser_tests + 58469789
 31  brave_browser_tests                 0x000000010a12a9d1 brave_browser_tests + 64457169
 32  brave_browser_tests                 0x000000010a129a95 brave_browser_tests + 64453269
 33  brave_browser_tests                 0x00000001075e5106 brave_browser_tests + 19083526
 34  brave_browser_tests                 0x0000000107ab2be3 brave_browser_tests + 24120291
 35  brave_browser_tests                 0x00000001075e4087 brave_browser_tests + 19079303
 36  brave_browser_tests                 0x00000001075e6a68 brave_browser_tests + 19090024
 37  brave_browser_tests                 0x00000001075e27f8 brave_browser_tests + 19073016
 38  brave_browser_tests                 0x0000000109377a61 brave_browser_tests + 50092641
 39  brave_browser_tests                 0x0000000109377654 brave_browser_tests + 50091604
 40  brave_browser_tests                 0x0000000108602385 brave_browser_tests + 35980165
 41  brave_browser_tests                 0x0000000108602a2c brave_browser_tests + 35981868
 42  brave_browser_tests                 0x0000000109b748fe brave_browser_tests + 58468606
 43  brave_browser_tests                 0x0000000109b615de brave_browser_tests + 58389982
 
 [39457:775:1028/153602.376338:ERROR:CONSOLE(1)] "[Shields]: Can't request shields panel data. Error: No tab url specified", source: chrome-extension://mnojpmjdmbbfmejpflffifhffcmidifd/out/brave_extension_background.bundle.js (1)
 [39457:775:1028/153602.377415:ERROR:CONSOLE(1)] "[Shields]: Can't request shields panel data. Error: No tab url specified", source: chrome-extension://mnojpmjdmbbfmejpflffifhffcmidifd/out/brave_extension_background.bundle.js (1)
 [39457:775:1028/153602.378359:ERROR:CONSOLE(1)] "[Shields]: Can't request shields panel data. Error: No tab url specified", source: chrome-extension://mnojpmjdmbbfmejpflffifhffcmidifd/out/brave_extension_background.bundle.js (1)
 [  FAILED  ] RewardsContributionBrowserTest.PanelMonthlyTipAmount, where TypeParam =  and GetParam() =  (33856 ms)