Ensure the meteor.loginServiceConfiguration subscription always becomes ready

[Torgen]

Fixes #12376

The base branch was changed.

[ixdi]

Hi,
After update to 2.11.0-rc.0 the initialization of the server shows this message:

I20230208-16:13:27.952(1)? Exception from sub meteor.loginServiceConfiguration id vAACiX9oharg3fne4 TypeError: this.ready is not a function
I20230208-16:13:27.954(1)?     at Subscription._server.publish.is_auto [as _handler] (packages/accounts-base/accounts_server.js:769:12)
I20230208-16:13:27.954(1)?     at packages/check/match.js:118:15
I20230208-16:13:27.954(1)?     at Meteor.EnvironmentVariable.EVp.withValue (packages/meteor.js:1329:12)
I20230208-16:13:27.954(1)?     at Object._failIfArgumentsAreNotAllChecked (packages/check/match.js:116:43)
I20230208-16:13:27.954(1)?     at maybeAuditArgumentChecks (packages/ddp-server/livedata_server.js:1899:18)
I20230208-16:13:27.954(1)?     at packages/ddp-server/livedata_server.js:1124:9
I20230208-16:13:27.954(1)?     at Meteor.EnvironmentVariable.EVp.withValue (packages/meteor.js:1329:12)
I20230208-16:13:27.954(1)?     at Subscription._runHandler (packages/ddp-server/livedata_server.js:1123:60)
I20230208-16:13:27.954(1)?     at Session._startSubscription (packages/ddp-server/livedata_server.js:934:9)
I20230208-16:13:27.955(1)?     at Session.sub (packages/ddp-server/livedata_server.js:673:12)
I20230208-16:13:27.955(1)?     at packages/ddp-server/livedata_server.js:603:43

Could it be that it is necessary to use this.ready() with function definition instead of using the arrow function?

this._server.publish("meteor.loginServiceConfiguration", () => { ... this.ready(); }, {is_auto: true})

Thanks

[Grubba27]

Nice catch! Thanks!! will make the change for this.