build(deps): bump borsh from 1.6.1 to 1.7.0 (#546)

Bumps [borsh](https://github.com/near/borsh-rs) from 1.6.1 to 1.7.0.
- [Release notes](https://github.com/near/borsh-rs/releases)
- [Changelog](https://github.com/near/borsh-rs/blob/master/CHANGELOG.md)
- [Commits](near/borsh-rs@borsh-v1.6.1...borsh-v1.7.0)

---
updated-dependencies:
- dependency-name: borsh
  dependency-version: 1.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]