TestAnnouncementsChannelPermissions is flaky

[jrainville]

I experienced this issue in my PR #7213

and I also tested develop.

In both, the test seems to fails ~33% of the time.

The error is such:

--- FAIL: TestMessengerCommunitiesTokenPermissionsSuite (13.24s)
    --- FAIL: TestMessengerCommunitiesTokenPermissionsSuite/TestAnnouncementsChannelPermissions (13.24s)
        /home/jonathan/dev/status-desktop/vendor/status-go/protocol/messenger_builder_test.go:66: created test logger - logger name: owner, test name: TestMessengerCommunitiesTokenPermissionsSuite/TestAnnouncementsChannelPermissions, 
        /home/jonathan/dev/status-desktop/vendor/status-go/protocol/messenger_builder_test.go:66: created test logger - logger name: bob, test name: TestMessengerCommunitiesTokenPermissionsSuite/TestAnnouncementsChannelPermissions, 
        /home/jonathan/dev/status-desktop/vendor/status-go/protocol/messenger_builder_test.go:66: created test logger - logger name: alice, test name: TestMessengerCommunitiesTokenPermissionsSuite/TestAnnouncementsChannelPermissions, 
        /home/jonathan/dev/status-desktop/vendor/status-go/protocol/communities_messenger_token_permissions_test.go:1157: 
            	Error Trace:	/home/jonathan/dev/status-desktop/vendor/status-go/protocol/communities_messenger_token_permissions_test.go:1157
            	            				/usr/local/go/src/runtime/asm_amd64.s:1700
            	Error:      	Received unexpected error:
            	            	no messages
            	Test:       	TestMessengerCommunitiesTokenPermissionsSuite/TestAnnouncementsChannelPermissions
FAIL
exit status 1
FAIL	github.com/status-im/status-go/protocol	13.267s