Merge pull request #21 from gimli-rs/dependabot/cargo/env_logger-0.6

Update env_logger requirement from 0.5 to 0.6

Author: main--

unwind/Cargo.toml

@@ -14,7 +14,7 @@ gcc = "0.3.52"
 
 [dev-dependencies]
 backtrace = "0.3"
-env_logger = "0.5"
+env_logger = "0.6"
 
 [features]
 nightly = []