Bump submodules/spdlog from 27cb4c7 to 472945b

Bumps [submodules/spdlog](https://github.com/gabime/spdlog) from `27cb4c7` to `472945b`.
- [Release notes](https://github.com/gabime/spdlog/releases)
- [Commits](gabime/spdlog@27cb4c7...472945b)

---
updated-dependencies:
- dependency-name: submodules/spdlog
  dependency-version: 472945ba489e3f5684761affc431ae532ab5ed8c
  dependency-type: direct:production
...

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Author: dependabot[bot]