Update predicates requirement from 1.0.5 to 3.0.3 (#73)

Updates the requirements on [predicates](https://github.com/assert-rs/predicates-rs) to permit the latest version.
- [Changelog](https://github.com/assert-rs/predicates-rs/blob/master/CHANGELOG.md)
- [Commits](assert-rs/predicates-rs@predicates-core-v1.0.5...v3.0.3)

---
updated-dependencies:
- dependency-name: predicates
  dependency-type: direct:production
...

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Cargo.toml

@@ -40,7 +40,7 @@ async-trait = "0.1.52"
 
 [dev-dependencies]
 tempfile = "3.1.0"
-predicates = "1.0.5"
+predicates = "3.0.3"
 assert_cmd = "2.0.12"
 strip-ansi-escapes = "0.2.0"