Bump src/libshared from 3da1534 to b986698 in the submodule group

Bumps the submodule group with 1 update: [src/libshared](https://github.com/GothenburgBitFactory/libshared).


Updates `src/libshared` from `3da1534` to `b986698`
- [Commits](GothenburgBitFactory/libshared@3da1534...b986698)

---
updated-dependencies:
- dependency-name: src/libshared
  dependency-version: b986698c06f369e8df99a3e5be3a270e53cb799f
  dependency-type: direct:production
  dependency-group: submodule
...

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Author: dependabot[bot]