fix package testing/fstest is not in GOROOT of golang1.14

[wenxuwan]

What this PR does:
change github.com/klauspost/compress version to golang1.14 support

refer klauspost/compress#432
Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[codecov]

Codecov Report

Merging #372 (158acfc) into main (7673018) will increase coverage by 0.05%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #372      +/-   ##
==========================================
+ Coverage   57.93%   57.98%   +0.05%     
==========================================
  Files         106      106              
  Lines        5636     5636              
==========================================
+ Hits         3265     3268       +3     
+ Misses       2035     2033       -2     
+ Partials      336      335       -1     

Impacted Files	Coverage Δ
components/rpc/invoker/mosn/channel/xchannel.go	83.87% <0.00%> (+3.22%)	⬆️

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[seeflood]

lgtm