obs-websocket: Update version to 5.5.5

[RytoEX]

Description

Update obs-websocket to version 5.5.5 containing this crash fix:

• utils: Use u8path to fix possible string conversion crashes on Windows obs-websocket#1282 (obsproject/obs-websocket@4bf9592)

Motivation and Context

Want to fix an obs-websocket crash.

How Has This Been Tested?

Tested on the PR.

Types of changes

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

Checklist:

• My code has been run through clang-format.
• I have read the contributing document.
• My code is not on the master branch.
• The code has been tested.
• All commit messages are properly formatted and commits squashed where appropriate.
• I have included updates to all appropriate documentation.