upgrade hessian2 to v1.11.0

[wongoo]

What this PR does:
upgrade hessian2 to v1.11.0, see https://github.com/apache/dubbo-go-hessian2/releases/tag/v1.11.0

Which issue(s) this PR fixes:
None

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

- upgrade hessian2 to v1.11.0

[codecov-commenter]

Codecov Report

Merging #352 (897d024) into develop (c20b840) will not change coverage.
The diff coverage is n/a.

❗ Current head 897d024 differs from pull request most recent head 154569f. Consider uploading reports for the commit 154569f to get more accurate results

@@           Coverage Diff            @@
##           develop     #352   +/-   ##
========================================
  Coverage    39.84%   39.84%           
========================================
  Files           52       52           
  Lines         3047     3047           
========================================
  Hits          1214     1214           
  Misses        1703     1703           
  Partials       130      130           

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