Need support tantivy 0.21.1

[MochiXu]

It seems not support latest tantivy version(0.21.1)

the trait bound `LinderaTokenizer: Tokenizer` is not satisfied
the following other types implement trait `Tokenizer`:
  CangJieTokenizer
  Box<(dyn tantivy::tokenizer::tokenizer::BoxableTokenizer + 'static)>
  tantivy::tokenizer::alphanum_only::AlphaNumOnlyFilterWrapper<T>
  tantivy::tokenizer::ascii_folding_filter::AsciiFoldingFilterWrapper<T>
  FacetTokenizer
  tantivy::tokenizer::lower_caser::LowerCaserFilter<T>
  NgramTokenizer
  RawTokenizer
and 7 others
required for `TextAnalyzer` to implement `From<LinderaTokenizer>`rustc

[mosuka]

@MochiXu
Thanks for letting me know. I will fix it later.

[mosuka]

@MochiXu
I released v0.27.1. Please check it out.
Thanks 😃