Update dependencies

[devbugging]

Description

Update flow dependencies to latest versions:

• emulator v0.22.0 -> 0.23.0
• cadence v0.18.1-0.20210621144040-64e6b6fb2337 -> v0.19.1
• flow go v0.18.4 -> v0.21.3
• go sdk v0.20.1-0.20210623043139-533a95abf071 -> v0.22.0
• languageserver v0.18.3-0.20210922170423-869cc8faab9b -> v0.18.3-0.20211005105715-3c618f0fcd10 (we need to release a tagged version after)

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For contributor use:

• Targeted PR against master branch
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work
• Code follows the standards mentioned here
• Updated relevant documentation
• Re-reviewed Files changed in the Github PR explorer
• Added appropriate labels

[codecov-commenter]

Codecov Report

Merging #396 (422b8ac) into master (ff1f8b1) will decrease coverage by 0.08%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #396      +/-   ##
==========================================
- Coverage   55.33%   55.24%   -0.09%     
==========================================
  Files          36       36              
  Lines        1874     1877       +3     
==========================================
  Hits         1037     1037              
- Misses        707      710       +3     
  Partials      130      130              

Flag	Coverage Δ
unittests	55.24% <0.00%> (-0.09%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/flowkit/keys.go	32.60% <ø> (+0.35%)	⬆️
pkg/flowkit/transaction.go	0.00% <0.00%> (ø)

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[janezpodhostnik]

Nice! I left a small comment.