Bump code/common/libs/json from e7452d8 to 8c391e0

Bumps [code/common/libs/json](https://github.com/nlohmann/json) from `e7452d8` to `8c391e0`.
- [Release notes](https://github.com/nlohmann/json/releases)
- [Commits](nlohmann/json@e7452d8...8c391e0)

---
updated-dependencies:
- dependency-name: code/common/libs/json
  dependency-type: direct:production
...

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