build(deps): bump pelago/emogrifier from 7.3.0 to 8.1.0

Bumps [pelago/emogrifier](https://github.com/MyIntervals/emogrifier) from 7.3.0 to 8.1.0.
- [Release notes](https://github.com/MyIntervals/emogrifier/releases)
- [Changelog](https://github.com/MyIntervals/emogrifier/blob/main/CHANGELOG.md)
- [Commits](MyIntervals/emogrifier@v7.3.0...v8.1.0)

---
updated-dependencies:
- dependency-name: pelago/emogrifier
  dependency-version: 8.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]