fix: CMake build libs ogg, phmap and missing absl for protobuf

[jopadan]

Description

Add missing absl for system protobuf and switch to protobuf::libprotobuf Remove CONFIG from Ogg to find package Add Check for parallel-hashmap header

Fixes

#937 #936

Type of change

• [x] Bug fix (non-breaking change which fixes an issue)

Test Configuration:

• Operating System: Linux-6.11.4 EM64T gcc-14.2.1 binutils-2.43.1

Checklist

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I checked the PR checks reports
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works

[mehah]

@jopadan https://github.com/mehah/otclient/actions/runs/11420960668/job/31777564760?pr=938#step:8:323

I don't know much about cmake, maybe need to add abseil as a dependency to vcpkg.

https://github.com/mehah/otclient/blob/f02bd7ed0bef9d76c5c940d78b31ce5d8494efff/vcpkg.json#L4

[dudantas]

I've taken the liberty to submit a commit correcting the absl. I hope you don't mind. It was missing to add it to vcpkg.json and correct the way it finds package