Add legacy endpoint for 1.16.5 and its derivates.

[hectorskypl]

Looks like 1.16.5 not uses standard endpoint which others version use, however its literally same thing as other versions use so i decided simply add the route in main.go.

[evan-goode]

Thanks very much! This finally solves the mystery of why 1.16.4 & 1.16.5 didn't work without authlib-injector. I added another alias at /services/privileges and I'll merge this once the CI tests finish.

[evan-goode]

I documented this on wiki.vg: https://wiki.vg/Mojang_API#Player_Attributes

[hectorskypl]

Thanks very much! This finally solves the mystery of why 1.16.4 & 1.16.5 didn't work without authlib-injector. I added another alias at /services/privileges and I'll merge this once the CI tests finish.

I documented this on wiki.vg: https://wiki.vg/Mojang_API#Player_Attributes

Thank you a lot either there, i forgot about authlib-injector since i do not use it especially.
Nice, thought its incredible to you update wiki.vg while it was source from where i was source most of my knowledge.