Bump Serilog from 2.12.0 to 3.1.0

Bumps [Serilog](https://github.com/serilog/serilog) from 2.12.0 to 3.1.0.
- [Release notes](https://github.com/serilog/serilog/releases)
- [Commits](https://github.com/serilog/serilog/compare/v2.12.0...v3.1.0)

---
updated-dependencies:
- dependency-name: Serilog
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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