Fix MarshalIndent

[goccy]

fix #247

fix indent number and totalLength for recursive type .

Benchmark result

After fixed, I tried to run benchmark was introduced in #247

goos: darwin
goarch: amd64
pkg: benchmark
BenchmarkMarshalIndentEncodingJson-16         24284             48370 ns/op          105041 B/op         25 allocs/op
BenchmarkMarshalIndentGoJson-16              120224              9335 ns/op           22512 B/op         22 allocs/op

[codecov-commenter]

Codecov Report

Merging #249 (b972a9b) into master (ad04977) will increase coverage by 0.08%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #249      +/-   ##
==========================================
+ Coverage   81.50%   81.59%   +0.08%     
==========================================
  Files          46       46              
  Lines       14537    14537              
==========================================
+ Hits        11848    11861      +13     
+ Misses       2142     2134       -8     
+ Partials      547      542       -5     

[cwbriscoe]

Nice work. Thanks!