chore: bump testdouble from 3.16.7 to 3.16.8
chore: bump testdouble from 3.16.7 to 3.16.8

Bumps [testdouble](https://github.com/testdouble/testdouble.js) from 3.16.7 to 3.16.8.
- [Release notes](https://github.com/testdouble/testdouble.js/releases)
- [Changelog](https://github.com/testdouble/testdouble.js/blob/main/CHANGELOG.md)
- [Commits](https://github.com/testdouble/testdouble.js/compare/v3.16.7...v3.16.8)

---
updated-dependencies:
- dependency-name: testdouble
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
rowanmanning/allow-methods,rowanmanning/allow-methods