Fix src/commands/tag.rs

The DateTime::from_timestamp(0, 0).unwrap_or_else(Utc::now) chain is problematic. If DateTime::from_timestamp(0, 0) fails (which is extremely unlikely), it falls back to the current time, making it inconsistent with the documented behavior of using Unix epoch as a fallback for data corruption. Consider using DateTime::from_timestamp(0, 0).unwrap() or a more explicit error handling approach.

Co-authored-by: Copilot <[email protected]>

Author: eugener

src/commands/tag.rs

@@ -427,7 +427,7 @@ fn parse_for_each_ref_line(line: &str) -> Result<Tag> {
             let timestamp = parse_unix_timestamp(tagger_date).unwrap_or_else(|_| {
                 // Timestamp parsing failed - this indicates malformed git metadata
                 // Use Unix epoch (1970-01-01) as fallback to make data corruption obvious
-                DateTime::from_timestamp(0, 0).unwrap_or_else(Utc::now)
+                DateTime::from_timestamp(0, 0).unwrap()
             });
             Some(Author {
                 name: tagger_name.to_string(),