Bump es5-ext from 0.10.53 to 0.10.63 in /backend

Bumps [es5-ext](https://github.com/medikoo/es5-ext) from 0.10.53 to 0.10.63.
- [Release notes](https://github.com/medikoo/es5-ext/releases)
- [Changelog](https://github.com/medikoo/es5-ext/blob/main/CHANGELOG.md)
- [Commits](medikoo/es5-ext@v0.10.53...v0.10.63)

---
updated-dependencies:
- dependency-name: es5-ext
  dependency-type: indirect
...

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