Update Rust crate ureq to 2.9.1 (#329)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Cargo.lock

@@ -37,7 +37,7 @@ node-semver = "2.1.0"
 serde = { version = "1.0.193", features = ["derive"] }
 serde_json = "1.0.108"
 spectral = "0.6.0"
-ureq = { version = "2.9.0", features = ["native-certs", "json"] }
+ureq = { version = "2.9.1", features = ["native-certs", "json"] }
 
 [target.'cfg(unix)'.dependencies]
 flate2 = "1.0.28"