Bump submodules/acala from 9c6d516 to c61d548

Bumps [submodules/acala](/~https://github.com/AcalaNetwork/Acala) from `9c6d516` to `c61d548`.
- [Release notes](/~https://github.com/AcalaNetwork/Acala/releases)
- [Commits](AcalaNetwork/Acala@9c6d516...c61d548)

---
updated-dependencies:
- dependency-name: submodules/acala
  dependency-type: direct:production
...

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