[Snyk] Upgrade ws from 7.4.6 to 7.5.1

[snyk-bot]

Snyk has created this PR to upgrade ws from 7.4.6 to 7.5.1.

: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 2 versions ahead of your current version.
• The recommended version was released 3 days ago, on 2021-06-29.

Release notes

Package name: ws

• 7.5.1 - 2021-06-29
  

  Bug fixes

  • Fixed an issue that prevented the connection from being closed properly if an
    error occurred simultaneously on both peers (b434b9f).
• 7.5.0 - 2021-06-16
  

  Features

  • Some errors now have a code property describing the specific type of error
    that has occurred (#1901).

  Bug fixes

  • A close frame is now sent to the remote peer if an error (such as a data
    framing error) occurs (8806aa9).
  • The close code is now always 1006 if no close frame is received, even if the
    connection is closed due to an error (8806aa9).
• 7.4.6 - 2021-05-25
  

  Bug fixes

  • Fixed a ReDoS vulnerability (00c425e).

  A specially crafted value of the Sec-Websocket-Protocol header could be used
  to significantly slow down a ws server.

  for (const length of [1000, 2000, 4000, 8000, 16000, 32000]) {
    const value = 'b' + ' '.repeat(length) + 'x';
    const start = process.hrtime.bigint();
  
    value.trim().split(/ *, */);
  
    const end = process.hrtime.bigint();
  
    console.log('length = %d, time = %f ns', length, end - start);
  }

  The vulnerability was responsibly disclosed along with a fix in private by
  Robert McLaughlin from University of California, Santa Barbara.

  In vulnerable versions of ws, the issue can be mitigated by reducing the maximum
  allowed length of the request headers using the --max-http-header-size=size
  and/or the maxHeaderSize options.

from ws GitHub release notes

Commit messages

Package name: ws

• 38c6c73 [dist] 7.5.1
• 2916006 [test] Add more tests for `WebSocket.prototype.close()`
• b434b9f [fix] Fix close edge cases
• c3fdc99 [minor] Fix misleading comment
• 145480a [test] Fix repeated typo
• e3f0c17 [dist] 7.5.0
• 1d3f4cb [doc] Fix anchor tags for error codes
• 6eea0d4 [doc] Fix typo
• bb5d44b [doc] Sort error codes alphabetically
• c6e3080 [minor] Attach error codes to all receiver errors (#1901)
• 074e6a8 [fix] Don't call `ws.terminate()` unconditionally in `duplex._destroy()`
• 8806aa9 [fix] Close the connection cleanly when an error occurs
• 05b8ccd [doc] Fix broken link (#1897)
• 03a7078 [doc] Remove unsafe regex from code snippet
• 7ee3115 [doc] Add logo to coverage badge
• edff6bb [test] Fix nit
• 262e45a [test] Rename certificates and private keys files
• d18c677 [security] Update link to point to published security advisories
• 2f2b3e8 [test] Update certificates and private keys
• c05d51f [security] Add ReDoS vulnerability to SECURITY.md

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