feat: build license file for vscode-webdriverio

[mato533]

Proposed changes

Extensions for VSCode must bundle all dependencies except for VSCode itself.
Therefore, the licenses of packages with dependencies that are subject to redistribution must be specified in a own license file.

To achieve this, we automated the identification of packages bundled from ESBUILD metadata, the acquisition of their license files, and the output of license files for extensions.

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)
• 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)

Further comments

Reviewers: @webdriverio/project-committers

[christian-bromann]

LGTM 👍