upgrade dependencies

[sinh117801]

• upgrade jest and fixed som error on test after upgrade. REF: #2533
• upgrade size-limit reduce the size from 2.55KB to 2.11KB after build.

[codecov]

Codecov Report

Merging #869 into dev will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               dev      #869   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          164       164           
  Lines         1319      1319           
  Branches       273       273           
=========================================
  Hits          1319      1319           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 3188e15...8276f26. Read the comment docs.

[iamkun]

The new version would cause an npm install error on node 6.

Besides, I don't think upgrade size-limit reduce the size from 2.55KB to 2.11KB after the build. is really reduce the bundle size. Instead, it may just adjust its calculation algorithm?

[sinh117801]

@iamkun, just a question. When will you plan to stop support node 6?

[iamkun]

there's no need to stop support node 6, make be just a time to skip unit test on node 6

[sinh117801]

Ok, I see. I will close this PR.