build(deps): bump blueprint-sdk from b597180 to 9473c9f

Bumps [blueprint-sdk](https://github.com/tangle-network/blueprint) from `b597180` to `9473c9f`.
- [Release notes](https://github.com/tangle-network/blueprint/releases)
- [Commits](tangle-network/blueprint@b597180...9473c9f)

---
updated-dependencies:
- dependency-name: blueprint-sdk
  dependency-version: 9473c9f60d2d2b8281fae80219fba84bbaf04234
  dependency-type: direct:production
...

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Author: dependabot[bot]