[Snyk] Fix for 35 vulnerabilities

[knutole]

Snyk has created this PR to fix 35 vulnerabilities in the yarn dependencies of this project.

Snyk changed the following file(s):

• package.json
• yarn.lock

Note for zero-installs users

If you are using the Yarn feature zero-installs that was introduced in Yarn V2, note that this PR does not update the .yarn/cache/ directory meaning this code cannot be pulled and immediately developed on as one would expect for a zero-install project - you will need to run yarn to update the contents of the ./yarn/cache directory.
If you are not using zero-install you can ignore this as your flow should likely be unchanged.

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Regular Expression Denial of Service (ReDoS) SNYK-JS-CROSSSPAWN-8303230	756
	Prototype Pollution SNYK-JS-LODASH-567746	731
	Regular Expression Denial of Service (ReDoS) SNYK-JS-WEBSOCKETEXTENSIONS-570623	731
	Improper Input Validation SNYK-JS-SOCKETIOPARSER-3091012	704
	Prototype Pollution SNYK-JS-LODASH-6139239	696
	Prototype Poisoning SNYK-JS-QS-3153490	696
	Regular Expression Denial of Service (ReDoS) SNYK-JS-SEMVER-3247795	696
	Denial of Service (DoS) SNYK-JS-SOCKETIOPARSER-1056752	696
	Regular Expression Denial of Service (ReDoS) npm:sshpk:20180409	696
	Prototype Pollution SNYK-JS-LODASH-450202	686
	Prototype Pollution SNYK-JS-LODASH-608086	686
	Prototype Pollution SNYK-JS-LODASH-73638	686
	Code Injection SNYK-JS-LODASH-1040724	681
	Uncontrolled Resource Consumption ('Resource Exhaustion') SNYK-JS-TAR-6476909	646
	Prototype Pollution SNYK-JS-JSONSCHEMA-1920922	644
	Arbitrary File Write SNYK-JS-TAR-1579147	639
	Arbitrary File Write SNYK-JS-TAR-1579152	639
	Arbitrary File Write SNYK-JS-TAR-1579155	639
	Prototype Pollution npm:lodash:20180130	636
	Prototype Pollution SNYK-JS-MINIMIST-559764	601
	Denial of Service (DoS) SNYK-JS-TRIMNEWLINES-1298042	589
	Regular Expression Denial of Service (ReDoS) npm:underscore.string:20170908	589
	Regular Expression Denial of Service (ReDoS) SNYK-JS-HOSTEDGITINFO-1088355	586
	Regular Expression Denial of Service (ReDoS) SNYK-JS-LODASH-1018905	586
	Regular Expression Denial of Service (ReDoS) SNYK-JS-POSTCSS-1255640	586
	Regular Expression Denial of Service (ReDoS) SNYK-JS-LODASH-73639	541
	Cross-site Scripting (XSS) SNYK-JS-COOKIE-8163060	529
	Insertion of Sensitive Information into Log File SNYK-JS-SNYK-10497607	513
	Regular Expression Denial of Service (ReDoS) SNYK-JS-BRACEEXPANSION-9789073	508
	Prototype Pollution SNYK-JS-MINIMIST-2429795	506
	Regular Expression Denial of Service (ReDoS) SNYK-JS-MARKDOWNIT-2331914	479
	Regular Expression Denial of Service (ReDoS) SNYK-JS-MINIMATCH-3050818	479
	Regular Expression Denial of Service (ReDoS) SNYK-JS-UGLIFYJS-1727251	479
	Denial of Service (DoS) npm:mem:20180117	469
	Regular Expression Denial of Service (ReDoS) SNYK-JS-TAR-1536758	410

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Important

• Check the changes in this PR to ensure they won't cause issues with your project.
• Max score is 1000. Note that the real score may have changed since the PR was raised.
• This PR was automatically created by Snyk using the credentials of a real user.

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Learn how to fix vulnerabilities with free interactive lessons:

🦉 Regular Expression Denial of Service (ReDoS)
🦉 Cross-site Scripting (XSS)
🦉 Prototype Pollution
🦉 More lessons are available in Snyk Learn