[Snyk] Security upgrade socket.io from 1.2.1 to 2.1.0

[cleohari]

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

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • src/third_party/duktape-1.8.0/debugger/package.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	461/1000 Why? Recently disclosed, Has a fix available, CVSS 3.5	Regular Expression Denial of Service (ReDoS) SNYK-JS-DEBUG-3227433	Yes	No Known Exploit

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

Commit messages

Package name: socket.io

The new version differs by 250 commits.

• db831a3 [chore] Release 2.1.0
• ac945d1 [feat] Add support for dynamic namespaces (#3195)
• ad0c052 [docs] Add note in docs for `origins(fn)` about `error` needing to be a string. (#2895)
• 1f1d64b [fix] Include the protocol in the origins check (#3198)
• f4fc517 [fix] Properly emit 'connect' when using a custom namespace (#3197)
• be61ba0 [docs] Add link to a Dart client implementation (#2940)
• c0c79f0 [feat] Add support for dynamic namespaces (#3187)
• dea5214 [chore] Bump superagent and supertest versions (#3186)
• b1941d5 [chore] Bump engine.io to version 3.2.0
• a23007a [docs] Update license year (#3153)
• f48a06c [feat] Add a 'binary' flag (#3185)
• 0539a2c [test] Update travis configuration
• c06ac07 [docs] Fix typo (#3157)
• 52b0960 [chore] Bump debug to version 3.1.0
• 1c108a3 [chore] Release 2.0.4
• f333479 [test] Use npm scripts instead of gulp (#3078)
• 3f61165 [docs] Fix a grammar mistake in the API docs (#3076)
• e26b71c [docs] Fix typo in API docs (#3066)
• 3386e15 [docs] Actually prevent input from having injected markup in chat example (#2987)
• 3684d59 [docs] Use path.join instead of concatenating paths (#3014)
• dd69abb [fix] Reset rooms object before broadcasting from namespace (#3039)
• 1f0e64a [fix] Do not throw when receiving an unhandled error packet (#3038)
• 9d170a7 [docs] Add io.emit in the cheat sheet (#2992)
• 7199d1b [docs] Fix misnamed 'Object.keys' in API docs (#2979)

See the full diff

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