chore(deps): update dependency vuepress to v1.3.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
vuepress	devDependencies	minor	1.2.0 -> 1.3.0

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Release Notes

vuejs/vuepress

v1.3.0

Compare Source

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[codecov]

Codecov Report

Merging #27 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master     #27   +/-   ##
======================================
  Coverage    92.2%   92.2%           
======================================
  Files           7       7           
  Lines          77      77           
  Branches       19      19           
======================================
  Hits           71      71           
  Misses          6       6

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