Escape braces for runner path

[RushingAlien]

Description

Hello, as you all know braces () are commonly used in filenames, steam's Proton 9 is still named Proton 9.0 (Beta). The braces caused an sh syntax error as per attached issue. This PR escapes the braces for runner path.

Fixes #3407

Type of change

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce.

• Use a runner with braces in the name
• run a windows program
• run legacy wine tools
  • winecfg
  • explorer
  • uninstaller
  • debugger
  • control panel
  • taskmgr