gl: fix depth stencil texture format capability

[jinleili]

Checklist

• Run cargo clippy.
• Run RUSTFLAGS=--cfg=web_sys_unstable_apis cargo clippy --target wasm32-unknown-unknown if applicable.
• Add change to CHANGELOG.md. See simple instructions inside file.

Connections
Closes #2726

Testing
Tested on locally and Chrome Canary(v105.0.5160.0)

[maxammann]

This fix works for #2726

But are the changes actually correct? can we assure that depth buffers support multisampling?

[jinleili]

Google Dawn says this capability works on all backends, and OpenGL Image Format wiki also says:

There are three basic kinds of image formats: color, depth, and depth/stencil. Unless otherwise specified, all formats can be used for textures and renderbuffers equally. Also, unless otherwise specified, all formats can be multisampledequally.

[jinleili]

Also searched for OpenGL ES 3.2 Spec

8.8 Multisample Textures

In addition to the texture types described in previous sections, two additional types of texture are supported. Multisample textures are similar to two-dimensional or two-dimensional array textures, except that they contain multiple samples per texel.