style: Apply rustfmt formatting

🤖 Generated with [Claude Code](https://claude.ai/code)

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

Author: runningcode

src/utils/vcs.rs

@@ -294,7 +294,10 @@ fn find_merge_base_ref(
 
     // Return the merge-base commit SHA as the base reference
     let merge_base_sha = merge_base_oid.to_string();
-    debug!("Found merge-base commit as base reference: {}", merge_base_sha);
+    debug!(
+        "Found merge-base commit as base reference: {}",
+        merge_base_sha
+    );
     Ok(Some(merge_base_sha))
 }