build(deps): update proptest-derive requirement from 0.6 to 0.7 (#58)

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

Author: dependabot[bot]

cdevents-sdk/Cargo.toml

@@ -14,7 +14,7 @@ description = "A Rust SDK for CDEvents"
 cloudevents-sdk = { version = "0.8", optional = true, default-features = false }
 fluent-uri = "0.3"
 proptest = { version = "1.4", optional = true }
-proptest-derive = { version = "0.6", optional = true }
+proptest-derive = { version = "0.7", optional = true }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 thiserror = "2.0"