message: fix: ensure ref sequence is properly stripped
diff: @@ -67,10 +67,8 @@ pub fn strip_insertions<T: Letter<T>>(qry_seq: &[T], ref_seq: &[T]) -> StripInse
  insertions.shrink_to_fit();
  // Remove gaps from ref
  - let ref_stripped = Vec::<T>::from(ref_seq)
  - .into_iter()
  - .filter(|c| c == &T::GAP)
  - .collect_vec();
  + let mut ref_stripped = ref_seq.to_vec();
  + ref_stripped.retain(|c| c != &T::GAP);
  StripInsertionsResult {
  qry_seq: qry_stripped,
  