restrict access to channel converstion to public for non team admin+ (#29819)

server/channels/testlib/store.go

@@ -79,6 +79,7 @@ func GetMockStoreForSetupFunctions() *mocks.Store {
 	systemStore.On("GetByName", model.MigrationKeyDeleteDmsPreferences).Return(&model.System{Name: model.MigrationKeyDeleteDmsPreferences, Value: "true"}, nil)
 	systemStore.On("GetByName", model.MigrationKeyAddManageJobAncillaryPermissions).Return(&model.System{Name: model.MigrationKeyAddManageJobAncillaryPermissions, Value: "true"}, nil)
 	systemStore.On("GetByName", model.MigrationKeyAddUploadFilePermission).Return(&model.System{Name: model.MigrationKeyAddUploadFilePermission, Value: "true"}, nil)
+	systemStore.On("GetByName", model.RestrictAccessToChannelConversionToPublic).Return(&model.System{Name: model.RestrictAccessToChannelConversionToPublic, Value: "true"}, nil)
 	systemStore.On("GetByName", "CustomGroupAdminRoleCreationMigrationComplete").Return(&model.System{Name: model.MigrationKeyAddPlayboosksManageRolesPermissions, Value: "true"}, nil)
 	systemStore.On("GetByName", "products_boards").Return(&model.System{Name: "products_boards", Value: "true"}, nil)
 	systemStore.On("GetByName", "elasticsearch_fix_channel_index_migration").Return(&model.System{Name: "elasticsearch_fix_channel_index_migration", Value: "true"}, nil)