修复mongo会话管理报错

[nick2wang]

对Decimal128和Regex类型做json序列化处理

TypeError: Object of type Decimal128 is not JSON serializable
TypeError: Object of type Regex is not JSON serializable

[codecov]

Codecov Report

Patch coverage: 75.00% and project coverage change: -0.01 ⚠️

Comparison is base (38d7a19) 75.02% compared to head (eaeab8b) 75.02%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2079      +/-   ##
==========================================
- Coverage   75.02%   75.02%   -0.01%     
==========================================
  Files         102      102              
  Lines       14811    14819       +8     
==========================================
+ Hits        11112    11118       +6     
- Misses       3699     3701       +2     

Impacted Files	Coverage Δ
common/utils/extend_json_encoder.py	62.50% <75.00%> (+1.38%)	⬆️

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