build(deps): Bump external/fmt from e3ddede to 2c3a569

Bumps [external/fmt](https://github.com/fmtlib/fmt) from `e3ddede` to `2c3a569`.
- [Release notes](https://github.com/fmtlib/fmt/releases)
- [Commits](fmtlib/fmt@e3ddede...2c3a569)

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

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