chore(deps): update dependency commitizen to v3.1.2

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
commitizen	devDependencies	minor	3.0.2 -> 3.1.2

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Release Notes

commitizen/cz-cli

v3.1.2

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Bug Fixes

• deps: update dependency lodash to v4.17.14 security (1875a38), closes commitizen/cz-cli#​639
• release fixed sem-release (#​648) (4417fcf)
• update dependencies for security (#​645) (b3dd4c4)

v3.1.1

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Bug Fixes

• cli: allow argv to be overridden in bootstrap (#​621) (f7982d3)

v3.1.0

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Features

• cli: Implement --hook option for git hooks integration (#​615) (26533fc), closes #​448 #​462

v3.0.7

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Bug Fixes

• config loader: deal with config file charset (#​584) (75b940d)

v3.0.6

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Bug Fixes

• deps: update dependency find-node-modules to v2 (#​611) (8fbf371)

v3.0.5

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Bug Fixes

• package: avoid depending on flatmap-stream (#​591) (0eded0a)

v3.0.4

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<a name"3.0.4">

3.0.4 (2018-10-20)

Bug Fixes

• Revert deal with config file charset (#​525) (#​583) (04b7d41b)

v3.0.3

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<a name"3.0.3">

3.0.3 (2018-10-19)

Bug Fixes

• config loader: deal with config file charset (#​525) (c74eeb9e)

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