fix(ci): allow dirty working tree in cargo package --list check

The Build Package job runs `cargo build --release` which updates
Cargo.lock, causing `cargo package --list` to fail with "uncommitted
changes". Add --allow-dirty so the packaging check works regardless
of build artifacts modifying the lockfile.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: konard

.github/workflows/rust.yml

@@ -247,7 +247,7 @@ jobs:
         run: cargo build --release --verbose
 
       - name: Check package
-        run: cargo package --list
+        run: cargo package --list --allow-dirty
 
   # === AUTO RELEASE ===
   # Automatic release on push to main using changelog fragments