test: add format uptime minutes test

src/builtins/fetch.rs

@@ -65,4 +65,9 @@ mod tests {
     fn test_format_uptime_seconds() {
         assert_eq!(format_uptime(35), "0h 0m 35s");
     }
+
+    #[test]
+    fn test_format_uptime_minutes() {
+        assert_eq!(format_uptime(135), "0h 2m 15s");
+    }
 }