Update dependency auto-changelog to ^1.12.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
auto-changelog	devDependencies	patch	^1.12.0 -> ^1.12.1	source

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Release Notes

CookPete/auto-changelog

v1.12.1

Compare Source

11 April 2019

• Change behaviour of ignoreCommitPattern to see tags on ignored commits #102
• Bump packages b371147
• Remove greenkeeper b0841c8

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[codecov]

Codecov Report

Merging #96 into develop will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           develop    #96   +/-   ##
======================================
  Coverage      100%   100%           
======================================
  Files            1      1           
  Lines            1      1           
======================================
  Hits             1      1

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