build(deps): bump isbot from 5.1.7 to 5.1.19

Bumps [isbot](https://github.com/omrilotan/isbot) from 5.1.7 to 5.1.19.
- [Changelog](https://github.com/omrilotan/isbot/blob/main/CHANGELOG.md)
- [Commits](omrilotan/isbot@v5.1.7...v5.1.19)

---
updated-dependencies:
- dependency-name: isbot
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>