Mercury ver upgrade

[ucwong]

[codecov[bot]]

Codecov Report

Merging #1669 (d79621d) into master (0403f95) will decrease coverage by 0.04%. The diff coverage is 28.57%.

:exclamation: Current head d79621d differs from pull request most recent head 3b24d20. Consider uploading reports for the commit 3b24d20 to get more accurate results

@@            Coverage Diff             @@
##           master    #1669      +/-   ##
==========================================
- Coverage   52.73%   52.69%   -0.04%     
==========================================
  Files         486      486              
  Lines       60464    60494      +30     
==========================================
- Hits        31883    31879       -4     
- Misses      26123    26165      +42     
+ Partials     2458     2450       -8     

Files Changed	Coverage Δ
consensus/cuckoo/sealer.go	6.71% <0.00%> (-0.05%)	:arrow_down:
core/types/block.go	22.45% <0.00%> (-0.62%)	:arrow_down:
core/vm/interpreter.go	30.80% <0.00%> (-0.30%)	:arrow_down:
consensus/cuckoo/consensus.go	8.53% <9.09%> (-0.16%)	:arrow_down:
params/config.go	30.59% <37.50%> (+0.07%)	:arrow_up:
core/cvm.go	65.45% <50.00%> (-1.22%)	:arrow_down:
core/vm/jump_table.go	99.74% <100.00%> (+<0.01%)	:arrow_up:

... and 15 files with indirect coverage changes