fix: bump tests to release (commitizen#656)

* fix: bump tests to release

* fix: ignore osome files for coverage

fix(deps): update dependency lodash to v4.17.15 (commitizen#652)

fix: dep updates (commitizen#650)

* fix: update to uuid

* fix: update nodemon to 1.19.1

* fix: update cachedir@2.2.0

* fix: update remaining dependencies

* fix: update remaining devDeps

fix(node): remove node 6 and 8 support (commitizen#649)

This removes node 6 and 8 support. This is a free project and our builds are getting very long so we
have to be a bit careful about what versions we test on. To be clear, this still works on Node 6 and
8 for now but we won't be maintaining that guarantee into the future so please work towards
updating. This also removes eslint, likely in favor of prettier at some future date.

BREAKING CHANGE: Removal of two major node versions, 6 and 8 from testing scheme

fix: release fixed sem-release (commitizen#648)

fix(cli): allow argv to be overridden in bootstrap (commitizen#621)

A consumer's CLI has extra arguments, allowing argv to be overridden without mutating the process.argv array directly would be useful.

feat(cli): Implement --hook option for git hooks integration (commiti…

…zen#615)

fixes commitizen#448 (re commitizen#462)

This pr allows project maintainers to enforce Commitizen generated commit messages as part of the workflow triggered by the `git commit` command. 

* implements the `--hook` flag, which directs Commitizen to edit the `.git/COMMIT_EDITMSG` file directly. 
* documents the use of the `--hook` flag in the `README`, both through traditional `git hooks` and `husky`.

fix(config loader): deal with config file charset (commitizen#584)

Make sure that config file charset is utf-8, or throw detail to notify

fix(deps): update dependency find-node-modules to v2 (commitizen#611)

This PR contains the following updates:

| Package | Type | Update | Change | References |
|---|---|---|---|---|
| find-node-modules | dependencies | major | `1.0.4` -> `2.0.0` | [source](https://togithub.com/callumacrae/find-node-modules) |

---

### Release Notes

<details>
<summary>callumacrae/find-node-modules</summary>

### [`v2.0.0`](https://togithub.com/callumacrae/find-node-modules/compare/v1.0.4...v2.0.0)

[Compare Source](https://togithub.com/callumacrae/find-node-modules/compare/v1.0.4...v2.0.0)

</details>

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### Renovate configuration

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:vertical_traffic_light: **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

:recycle: **Rebasing**: Whenever PR becomes conflicted, or if you modify the PR title to begin with "`rebase!`".

:no_bell: **Ignore**: Close this PR and you won't be reminded about this update again.

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fix(package): avoid depending on flatmap-stream (commitizen#591)