Update trybuild requirement from =1.0.55 to =1.0.56 (#34)

Updates the requirements on [trybuild](https://github.com/dtolnay/trybuild) to permit the latest version.
- [Release notes](https://github.com/dtolnay/trybuild/releases)
- [Commits](dtolnay/trybuild@1.0.55...1.0.56)

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

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

Cargo.toml

@@ -38,4 +38,4 @@ uuid08 = { package = "uuid", version = "0.8", optional = true }
 paste = "1.0"
 pretty_assertions = "1.0"
 serde = { version = "1.0", features = ["derive"] }
-trybuild = "=1.0.55"
+trybuild = "=1.0.56"