Bump axios from 1.8.1 to 1.8.3 in /mtx/sidecar

Bumps [axios](https://github.com/axios/axios) from 1.8.1 to 1.8.3.
- [Release notes](https://github.com/axios/axios/releases)
- [Changelog](https://github.com/axios/axios/blob/v1.x/CHANGELOG.md)
- [Commits](axios/axios@v1.8.1...v1.8.3)

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

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

Author: dependabot[bot]