Bump parity-scale-codec from 3.6.1 to 3.6.4

Bumps [parity-scale-codec](https://github.com/paritytech/parity-scale-codec) from 3.6.1 to 3.6.4.
- [Release notes](https://github.com/paritytech/parity-scale-codec/releases)
- [Changelog](https://github.com/paritytech/parity-scale-codec/blob/master/CHANGELOG.md)
- [Commits](paritytech/parity-scale-codec@parity-scale-codec-v3.6.1...parity-scale-codec-v3.6.4)

---
updated-dependencies:
- dependency-name: parity-scale-codec
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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