chore(logging): update log level for vault_hier to trace

- Changed log level directive for `vault_hier` from `info` to `trace`.
- Enables more detailed logging for debugging purposes.

src/main.rs

@@ -110,7 +110,7 @@ enum Commands {
 async fn main() -> Result<()> {
     // Initialize tracing
     fmt()
-        .with_env_filter(EnvFilter::from_default_env().add_directive("vault_hier=info".parse()?))
+        .with_env_filter(EnvFilter::from_default_env().add_directive("vault_hier=trace".parse()?))
         .with_target(false)
         .init();