build(deps): Bump external/fmt from 2c3a569 to 01914f0

Bumps [external/fmt](https://github.com/fmtlib/fmt) from `2c3a569` to `01914f0`.
- [Release notes](https://github.com/fmtlib/fmt/releases)
- [Commits](fmtlib/fmt@2c3a569...01914f0)

---
updated-dependencies:
- dependency-name: external/fmt
  dependency-type: direct:production
...

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