fix(gta-core-five): overriding ladder registers causing bad collision checks

[DaniGP17]

Goal of this PR

Fix a issue with ladders that detect that some physical object is colliding in the test made by ladder logic, this only seems to happen in a custom map of NoPixel but very sure that can happen in ladders with same environment(cover above the end of ladder)
Clip: https://streamable.com/52f0it

How is this PR achieving the goal

I've checked and I was overwriting some registers that was used after, so here I'm restoring original rax value and r11 that is only used at the end for writing.

This PR applies to the following area(s)

FiveM

Successfully tested on

Can't test cause is in a custom map, can I get a feature branch to ask people with this issue to test if its working?
Game builds: ..
Platforms: Windows

Checklist

• Code compiles and has been tested successfully.
• Code explains itself well and/or is documented.
• My commit message explains what the changes do and what they are for.
• No extra compilation warnings are added by these changes.

Fixes issues

Not public issue but reported by @d22tny

[d22tny]

tested on the specific branch an it works as expected! thanks.