Add resigningEnabled capability to @wdio/types (#12397)

[AlexRivero]

Proposed changes

Declared resigningEnabled capability in SauceLabsCapabilities interface, at @wdio/types. Fix for: #12397

Types of changes

• Polish (an improvement for an existing feature)
• Bugfix (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)
• Documentation update (improvements to the project's docs)
• Specification changes (updates to WebDriver command specifications)
• Internal updates (everything related to internal scripts, governance documentation and CI files)

Checklist

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have added the necessary documentation (if appropriate)
• I have added proper type definitions for new commands (if appropriate)

Backport Request

• This change is solely for v9 and doesn't need to be back-ported
• Back-ported PR at #XXXXX

Further comments

Reviewers: @webdriverio/project-committers

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: christian-bromann / name: Christian Bromann (e2692b3)
• ✅ login: AlexRivero / name: Alex Rivero Ferràs (b1ee20a)

[christian-bromann]

👍 Thanks a lot!