ci: use clang-format from LLVM 16

[XVilka]

Your checklist for this pull request

• I've read the guidelines for contributing to this repository
• I made sure to follow the project's coding style
• I've documented or updated the documentation of every function and struct this PR changes. If not so I've explained why.
• I've added tests that prove my fix is effective or that my feature works (if possible)
• I've updated the rizin book with the relevant information (if needed)

Detailed description

While there is an error on LLVM 15, try LLVM 16:

+ apt-get update
Hit:1 http://azure.archive.ubuntu.com/ubuntu jammy InRelease
Hit:2 http://azure.archive.ubuntu.com/ubuntu jammy-updates InRelease
Hit:3 http://azure.archive.ubuntu.com/ubuntu jammy-backports InRelease
Hit:4 http://azure.archive.ubuntu.com/ubuntu jammy-security InRelease
Hit:5 https://packages.microsoft.com/ubuntu/22.04/prod jammy InRelease
Hit:6 http://security.ubuntu.com/ubuntu jammy-security InRelease
Hit:7 http://archive.ubuntu.com/ubuntu jammy InRelease
Hit:8 http://archive.ubuntu.com/ubuntu jammy-updates InRelease
Hit:10 https://ppa.launchpadcontent.net/ubuntu-toolchain-r/test/ubuntu jammy InRelease
Hit:9 https://apt.llvm.org/jammy llvm-toolchain-jammy-15 InRelease
Reading package lists...
+ PKG='clang-15 lldb-15 lld-15 clangd-15'
+ [[ 0 -eq 1 ]]
+ apt-get install -y clang-15 lldb-15 lld-15 clangd-15
Reading package lists...
Building dependency tree...
Reading state information...
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 python3-lldb-14 : Conflicts: python3-lldb-x.y
 python3-lldb-15 : Conflicts: python3-lldb-x.y
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
Error: Process completed with exit code 100.

Test plan

CI is green

[XVilka]

Blocked on mainstream problem: llvm/llvm-project#64182

[ret2libc]

I don't see this error locally :(

[XVilka]

It's mainstream problem, see the link above

[wargio]

@XVilka llvm/llvm-project#64182 (comment)