Bump @octokit/plugin-retry from 4.1.6 to 6.0.0 in /extensions/ql-vscode (#2602)

Bumps [@octokit/plugin-retry](https://github.com/octokit/plugin-retry.js) from 4.1.6 to 6.0.0.
- [Release notes](https://github.com/octokit/plugin-retry.js/releases)
- [Commits](octokit/plugin-retry.js@v4.1.6...v6.0.0)

---
updated-dependencies:
- dependency-name: "@octokit/plugin-retry"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]