Mumble overlay broken on vulkan apps

[asdfghjkl403622]

Description

programs either refuse to start or start without the overlay when they use vulkan

Steps to reproduce

$ mumble-overlay vkcube
set
set
set
vkcube: symbol lookup error: /usr/lib64/mumble/libmumbleoverlay.x86_64.so: undefined symbol: glPopClientAttrib

Mumble version

Mumble version 1.5.735

Mumble component

Client

OS

Linux

Reproducible?

Yes

Additional information

Please tell me any logs I can provide, I'm not really sure since other issues I've seen open reference a bunch of stuff that was already merged

Relevant log output

Screenshots

No response

[Hartmnt]

The Mumble overlay does not currently support Vulkan (or DX12 for that matter)
Duplicate of #2134