Update Rust crate sentry-conduit to 0.3.0

Author: renovate-bot

Cargo.lock

@@ -74,7 +74,7 @@ reqwest = { version = "0.11", features = ["blocking", "gzip", "json"] }
 scheduled-thread-pool = "0.2.0"
 semver = { version = "1.0.3", features = ["serde"] }
 sentry = { version = "0.23.0", features = ["tracing"] }
-sentry-conduit = "0.2.0"
+sentry-conduit = "0.3.0"
 serde = { version = "1.0.0", features = ["derive"] }
 serde_json = "1.0.0"
 sha2 = "0.9"