Bump @types/d3-sankey from 0.12.4 to 0.12.5 (#369)

Bumps [@types/d3-sankey](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/d3-sankey) from 0.12.4 to 0.12.5.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/d3-sankey)

---
updated-dependencies:
- dependency-name: "@types/d3-sankey"
  dependency-version: 0.12.5
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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