Bump submodules/astar from 765d44b to 7e4745c

Bumps [submodules/astar](/~https://github.com/AstarNetwork/Astar) from `765d44b` to `7e4745c`.
- [Release notes](/~https://github.com/AstarNetwork/Astar/releases)
- [Commits](AstarNetwork/Astar@765d44b...7e4745c)

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

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