Update steam-auto-queue.user.js

[Kasp42]

Add skip agecheck

[FiveElementNinja]

Hi @Kasp42, thanks for the update! Would you mind submitting this to the development branch instead if it's not too much trouble? I like to do testing in that branch before merging into the master branch. Part of the reason for this is because I use several other scripts on Steam and I like to make sure nothing conflicts or causes problems. For example, I use Enhanced Steam, and one of the features it has is to automatically skip the age check that you added code for. It shouldn't cause a problem in this case, but you just never know what someone else's code might be doing.

Also, is it necessary to randomly choose the month, day, and year? Would it be better to simply select January 1, 1900 (or whatever the lowest year is)? That's what I was planning on doing anyway in the next update. I'd prefer it to do that, but I'm open to suggestions.

Thanks again for the contribution!