Bump predicates from 3.1.3 to 3.1.4 (#438)

Bumps [predicates](https://github.com/assert-rs/predicates-rs) from 3.1.3 to 3.1.4.
- [Changelog](https://github.com/assert-rs/predicates-rs/blob/master/CHANGELOG.md)
- [Commits](assert-rs/predicates-rs@v3.1.3...v3.1.4)

---
updated-dependencies:
- dependency-name: predicates
  dependency-version: 3.1.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]