Update dependency auto-changelog to v2.1.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
auto-changelog	devDependencies	minor	2.0.0 -> 2.1.0

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Release Notes

CookPete/auto-changelog

v2.1.0

Compare Source

14 June 2020

• Add --hide-credit option #166
• Add --unreleased-only option #165
• Fix --starting-version #164
• Add ability to prepend to an existing changelog #156
• Use tag date rather than first commit date #162
• Add CONTRIBUTING.md #141
• Add merge and fix support to commit-list helper #146

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[codecov]

Codecov Report

Merging #63 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master       #63   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           16        16           
  Lines          305       305           
  Branches        33        33           
=========================================
  Hits           305       305           

Flag	Coverage Δ
#unittests	100.00% <ø> (ø)

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