apple-codesign: honor verbose level to set logging level

Using `from_env` was only setting the logging level from the
environment. Setting `filter_level` then using `parse_default_env` sets
the logging level based on the verbosity level while still honoring the
`RUST_LOG` environment variable.

Closes #162.

Author: reckenrode

apple-codesign/CHANGELOG.md

@@ -6,6 +6,8 @@
 
 Released on ReleaseDate.
 
+* Fixed `env_logger` construction so `RUST_LOG` environment variable is
+  respected. (#162)
 * MSRV 1.70 -> 1.78.
 * `aws-config` 1.1 -> 1.5.
 * `aws-sdk-s3` 1.12 -> 1.24.

apple-codesign/src/cli/mod.rs

@@ -2499,9 +2499,11 @@ pub fn main_impl() -> Result<(), AppleCodesignError> {
         _ => LevelFilter::Trace,
     };
 
-    let mut builder = env_logger::Builder::from_env(
-        env_logger::Env::default().default_filter_or(log_level.as_str()),
-    );
+    let mut builder = env_logger::Builder::new();
+
+    builder
+        .filter_level(log_level)
+        .parse_default_env();
 
     // Disable log context except at higher log levels.
     if log_level <= LevelFilter::Info {