[Security] Bump is-my-json-valid from 2.16.1 to 2.20.0

[dependabot-preview[bot]]

Bumps is-my-json-valid from 2.16.1 to 2.20.0. This update includes security fixes.

Vulnerabilities fixed

*Sourced from [The Node Security Working Group](https://github.com/nodejs/security-wg/blob/master/vuln/npm/375.json).* > **Regular Expression Denial of Service (ReDoS)** > is-my-json-valid is vulnerable to Regular Expression Denial of Service (ReDoS) attacks via the email validation function > > Affected versions: <1.4.1 || >=2.0.0 <2.17.2

Commits

- [`60111f4`](https://github.com/mafintosh/is-my-json-valid/commit/60111f47ee8a0971a2e1229070d47172ce4667c5) 2.20.0 - [`8c11f77`](https://github.com/mafintosh/is-my-json-valid/commit/8c11f77cbd63a7a519daa8f5d4706a760140856b) Merge pull request [#175](https://github-redirect.dependabot.com/mafintosh/is-my-json-valid/issues/175) from LinusU/meta - [`b6d9b3f`](https://github.com/mafintosh/is-my-json-valid/commit/b6d9b3fbbf7b411654a4fd1dae4ceaba65063b4e) Cleanup package metadata - [`dcea5be`](https://github.com/mafintosh/is-my-json-valid/commit/dcea5be83be29ea444c81bd83e7aef732a11c003) 2.19.0 - [`1712811`](https://github.com/mafintosh/is-my-json-valid/commit/17128116bc5b3268f2151aecc1d7eee3d3604793) Merge pull request [#171](https://github-redirect.dependabot.com/mafintosh/is-my-json-valid/issues/171) from mafintosh/ts-nullable - [`fad4c91`](https://github.com/mafintosh/is-my-json-valid/commit/fad4c911ddfd736d5929b40326c47454eac76d5f) Add nullable types to TypeScript typings - [`484197f`](https://github.com/mafintosh/is-my-json-valid/commit/484197f0e44ca42112a5ae54615d5e0173769236) Add test for nested object in typings - [`4bec868`](https://github.com/mafintosh/is-my-json-valid/commit/4bec868bc57eeb70000262c328e542f062435289) Merge pull request [#168](https://github-redirect.dependabot.com/mafintosh/is-my-json-valid/issues/168) from mafintosh/ts-oneof - [`e8c30d5`](https://github.com/mafintosh/is-my-json-valid/commit/e8c30d543be8fce0c5fdbc628694611c9fb854c7) Add support for "oneOf" to TypeScript typings - [`7160756`](https://github.com/mafintosh/is-my-json-valid/commit/7160756a7406de0abec9dd8e84404e5276aa66ec) Merge pull request [#167](https://github-redirect.dependabot.com/mafintosh/is-my-json-valid/issues/167) from mafintosh/ts-required - Additional commits viewable in [compare view](https://github.com/mafintosh/is-my-json-valid/compare/v2.16.1...v2.20.0)

Maintainer changes

This version was pushed to npm by [linusu](https://www.npmjs.com/~linusu), a new releaser for is-my-json-valid since your current version.

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[dependabot-preview[bot]]

Superseded by #28.