Bump js-yaml from 3.12.0 to 3.13.1#3

Bumps [js-yaml](https://github.com/nodeca/js-yaml) from 3.12.0 to 3.13.1. <details> <summary>Changelog</summary> *Sourced from [js-yaml's changelog](https://github.com/nodeca/js-yaml/blob/master/CHANGELOG.md).* > 3.13.1 / 2019-04-05 > ------------------- > > - Fix possible code execution in (already unsafe) `.load()`, [#480](https://github-redirect.dependabot.com/nodeca/js-yaml/issues/480). > > > 3.13.0 / 2019-03-20 > ------------------- > > - Security fix: `safeLoad()` can hang when arrays with nested refs > used as key. Now throws exception for nested arrays. [#475](https://github-redirect.dependabot.com/nodeca/js-yaml/issues/475). > > > 3.12.2 / 2019-02-26 > ------------------- > > - Fix `noArrayIndent` option for root level, [#468](https://github-redirect.dependabot.com/nodeca/js-yaml/issues/468). > > > 3.12.1 / 2019-01-05 > ------------------- > > - Added `noArrayIndent` option, [#432](https://github-redirect.dependabot.com/nodeca/js-yaml/issues/432). </details> <details> <summary>Commits</summary> - [`665aadd`](https://github.com/nodeca/js-yaml/commit/665aadda42349dcae869f12040d9b10ef18d12da) 3.13.1 released - [`da8ecf2`](https://github.com/nodeca/js-yaml/commit/da8ecf24b63d2307015e75ee8bd1da1977071e35) Browser files rebuild - [`b2f9e88`](https://github.com/nodeca/js-yaml/commit/b2f9e882397660da37c5c5bb92e8ccc7bb9eb668) Merge pull request [#480](https://github-redirect.dependabot.com/nodeca/js-yaml/issues/480) from nodeca/toString - [`e18afbf`](https://github.com/nodeca/js-yaml/commit/e18afbf1edcafb7add2c4c7b22abc8d6ebc2fa61) Fix possible code execution in (already unsafe) load() - [`9d4ce5e`](https://github.com/nodeca/js-yaml/commit/9d4ce5e2895365c943d2bdf7e7c8ac1be3ec51a3) 3.13.0 released - [`f64c673`](https://github.com/nodeca/js-yaml/commit/f64c6737dbe24d110f53152d142d01e64520a193) Browser files rebuild - [`a567ef3`](https://github.com/nodeca/js-yaml/commit/a567ef3c6e61eb319f0bfc2671d91061afb01235) Restrict data types for object keys - [`59b6e76`](https://github.com/nodeca/js-yaml/commit/59b6e76b712350e9e6aad7773e7375a1de009cf9) Fix test name - [`e4267fc`](https://github.com/nodeca/js-yaml/commit/e4267fc733452d074a3e494fb5cab2a07c7e6b87) 3.12.2 released - [`7231a49`](https://github.com/nodeca/js-yaml/commit/7231a491788ecb289cee52e854574e7271c34350) Browser files rebuild - Additional commits viewable in [compare view](https://github.com/nodeca/js-yaml/compare/3.12.0...3.13.1) </details> <br /> [](https://help.github.com/articles/configuring-automated-security-fixes) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. [//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- <details> <summary>Dependabot commands and options</summary> <br /> You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot ignore this [patch|minor|major] version` will close this PR and stop Dependabot creating any more for this minor/major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself) - `@dependabot use these labels` will set the current labels as the default for future PRs for this repo and language - `@dependabot use these reviewers` will set the current reviewers as the default for future PRs for this repo and language - `@dependabot use these assignees` will set the current assignees as the default for future PRs for this repo and language - `@dependabot use this milestone` will set the current milestone as the default for future PRs for this repo and language You can disable automated security fix PRs for this repo from the [Security Alerts page](https://github.com/headfire94/package-json-cleanup-loader/network/alerts). </details>