Bump 3rdparty/spdlog from 7e635fc to 7cb90d1

Bumps [3rdparty/spdlog](https://github.com/gabime/spdlog) from `7e635fc` to `7cb90d1`.
- [Release notes](https://github.com/gabime/spdlog/releases)
- [Commits](gabime/spdlog@7e635fc...7cb90d1)

---
updated-dependencies:
- dependency-name: 3rdparty/spdlog
  dependency-type: direct:production
...

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