Bump predicates from 3.1.0 to 3.1.2 (#769)

Bumps [predicates](https://github.com/assert-rs/predicates-rs) from 3.1.0 to 3.1.2.
- [Changelog](https://github.com/assert-rs/predicates-rs/blob/master/CHANGELOG.md)
- [Commits](assert-rs/predicates-rs@v3.1.0...v3.1.2)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Cargo.lock

@@ -35,7 +35,7 @@ open = "4.2.0"
 oxide = { path = "sdk", version = "0.6.0" }
 oxide-httpmock = { path = "sdk-httpmock", version = "0.6.0" }
 oxnet = { git = "https://github.com/oxidecomputer/oxnet" }
-predicates = "3.1.0"
+predicates = "3.1.2"
 pretty_assertions = "1.4.0"
 progenitor = { git = "https://github.com/oxidecomputer/progenitor" }
 progenitor-client = "0.7.0"