DOCS(server): Add Documentation key to mumble-server unit

[diederikdehaas]

Make it easy to view the man page by documenting it in its service unit file. Then it can be viewed via systemctl help mumble-server.service.

Checks

• My commits follow the commit guidelines

[diederikdehaas]

I have a hard time seeing how my change could be the cause of the CI failures and certainly don't have an idea how to fix it.

This is the CI error:

[223/279] Performing build step for 'overlay_xcompile'
FAILED: overlay/overlay_xcompile-prefix/src/overlay_xcompile-stamp/overlay_xcompile-build D:/a/1/b/overlay/overlay_xcompile-prefix/src/overlay_xcompile-stamp/overlay_xcompile-build 
C:\Windows\system32\cmd.exe /C "cd /D D:\a\1\b\overlay\overlay_xcompile-prefix;D:\a\1\b\overlay\overlay_xcompile-prefix\src\overlay_xcompile-build && D:\a\1\s\overlay\scripts\build_overlay_xcompile.cmd -G Ninja -DCMAKE_TOOLCHAIN_FILE=C:/hostedtoolcache/windows/MumbleBuild/mumble_env.x64-windows-static-md-release.2024-07-22.9ad0398d8/scripts/buildsystems/vcpkg.cmake -DVCPKG_TARGET_TRIPLET=x86-windows-static-md-release -DMUMBLE_SOURCE_ROOT=D:/a/1/s -DMUMBLE_BINARY_DIR=D:/a/1/b -DCMAKE_BUILD_TYPE=Release -D3RDPARTY_DIR=D:/a/1/s/3rdparty -DCMAKE_C_COMPILER=cl.exe -DCMAKE_CXX_COMPILER=cl.exe -DBUILD_OVERLAY_XCOMPILE=ON -Dsymbols=ON -Dversion=1.6.0 D:/a/1/s/overlay && "C:\Program Files\CMake\bin\cmake.exe" -E touch D:/a/1/b/overlay/overlay_xcompile-prefix/src/overlay_xcompile-stamp/overlay_xcompile-build"
The filename, directory name, or volume label syntax is incorrect.

[224/279] Building RC object overlay\CMakeFiles\overlay.dir\mumble_ol.rc.res
[225/279] Building CXX object overlay\CMakeFiles\overlay.dir\opengl.cpp.obj
ninja: build stopped: subcommand failed.
##[error]Cmd.exe exited with code '1'.

[Hartmnt]

@diederikdehaas Yup, this was an issue in our CI. Just rebase your branch against the current master and it should work again!

[Krzmbrzl]

@Hartmnt I'll leave it up to you whether or not this should be backported.

[Krzmbrzl]

💚 All backports created successfully

Status	Branch	Result
✅	1.5.x

Questions ?

Please refer to the Backport tool documentation and see the Github Action logs for details