[Snyk] Upgrade ws from 6.1.2 to 6.2.2

[Dids]

This PR was automatically created by Snyk using the credentials of a real user.

Snyk has created this PR to upgrade ws from 6.1.2 to 6.2.2.

:information_source: Keep your dependencies up-to-date. This makes it easier to fix existing vulnerabilities and to more quickly identify and fix newly disclosed vulnerabilities when they affect your project.

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• The recommended version is 5 versions ahead of your current version.
• The recommended version was released 2 years ago, on 2021-06-01.

The recommended version fixes:

Severity	Issue	PriorityScore (*)	Exploit Maturity
	Regular Expression Denial of Service (ReDoS) SNYK-JS-WS-1296835	586/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 5.3	Proof of Concept

(*) Note that the real score may have changed since the PR was raised.

Release notes

Package name: ws

• 6.2.2 - 2021-06-01
• 6.2.1 - 2019-03-27
• 6.2.0 - 2019-03-06
• 6.1.4 - 2019-02-16
• 6.1.3 - 2019-01-24
• 6.1.2 - 2018-11-17

from ws GitHub release notes

Commit messages

Package name: ws

• 9bdb580 [dist] 6.2.2
• 78c676d [security] Fix ReDoS vulnerability
• d57db27 [dist] 6.2.1
• 40734d8 [minor] Add missing option in JSDoc comment
• 0556f31 [doc] Add TOC to ws.md (#1539)
• aa1dcd5 [fix] Make `WebSocket#close()` set the close timer immediately
• 297f56d [minor] Remove unneeded `if` statement
• bcab373 [test] Increase code coverage
• 3a5a20a Revert "[ci] Cache dependencies"
• 9a89e5d [ci] Cache dependencies
• 7f5025d [test] Fix flaky test
• 148c373 [test] Prefer arrow functions
• 3df8242 [test] Remove comment to disable eslint rule
• a40e29f [minor] Remove length threshold
• 6c22584 [minor] Buffer writes if the frame to send is made of multiple chunks
• 1842197 [test] Remove useless test
• eb6f8b0 [dist] 6.2.0
• 161f303 [feature] Add ability to follow redirects (#1490)
• a6e94f4 [minor] Move all buffer conversion functions to the buffer-util module
• 71ee9ed chore(package): update eslint to version 5.15.0 (#1522)
• 855494d [test] Fix flaky test
• 8c21add [codestyle] Add .gitattributes
• faf9b36 [ci] Let Travis CI handle x64 Windows tests
• bcb8a98 [ci] Test on macOS

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