build(deps): bump axios in /.github/actions/send-email

Bumps [axios](https://github.com/axios/axios) from 1.7.4 to 1.8.4.
- [Release notes](https://github.com/axios/axios/releases)
- [Changelog](https://github.com/axios/axios/blob/v1.x/CHANGELOG.md)
- [Commits](axios/axios@v1.7.4...v1.8.4)

---
updated-dependencies:
- dependency-name: axios
  dependency-version: 1.8.4
  dependency-type: indirect
...

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

Author: dependabot[bot]