obs-browser: Update version to 2.26.8

[RytoEX]

Description

obs-browser: Update version to 2.26.8

• obsproject/obs-browser@cda4f1f - Revert custom scheme handler protocol
• obsproject/obs-browser@ea04212 - Update version to 2.26.8

Motivation and Context

Fix issues with loading some media files.

See:

• Revert custom scheme handler protocol obs-browser#515

How Has This Been Tested?

Tested on obsproject/obs-browser#515.

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.