upgrade packages, upgrade jest config, upgrade lerna, upgrade snapshots

[codecov[bot]]

Codecov Report

Merging #82 into master will decrease coverage by 24.48%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #82       +/-   ##
==========================================
- Coverage   83.09%   58.6%   -24.49%     
==========================================
  Files          13      13               
  Lines         213     302       +89     
==========================================
  Hits          177     177               
- Misses         36     125       +89

Impacted Files	Coverage Δ
packages/create-graphql/src/commands/init.js	0% <0%> (ø)	:arrow_up:
packages/create-graphql/src/commands/generate.js	0% <0%> (ø)	:arrow_up:
packages/create-graphql/src/utils.js	0% <0%> (ø)	:arrow_up:
packages/create-graphql/src/index.js	0% <0%> (ø)	:arrow_up:
packages/generator/src/app/index.js	0% <0%> (ø)	:arrow_up:

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[lucasbento]

@sibelius: already did that on a branch, coverage seems to be messed up on the new version of Jest, any idea of the reason?

[sibelius]

jest changed some stuff, maybe the coverage is right now, and it was wrong before

[lucasbento]

Apparently our coverage report was wrong before and Jest improved it on the new version.