[Snyk] Security upgrade kafka-node from 2.6.1 to 4.0.0

[snyk-bot]

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:
  • package.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	596/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 5.5	Arbitrary Code Injection SNYK-JS-UNDERSCORE-1080984	Yes	Proof of Concept

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

Commit messages

Package name: kafka-node

The new version differs by 50 commits.

• a5a929e 4.0.0 (#1168)
• 3961f41 Type of message key could be string or Buffer (#1079)
• 80f3381 List topics in Admin (#1100)
• 9521495 Leftover zk (#1167)
• 0fbcb76 Validation check in ConsumerGroup for empty topic array (#1166)
• 78fd627 remove zookeeper closes #1145 (#1163)
• 2e95f50 Use same variable name for example (#1164)
• a8bcdd4 Add config entries and replica assignment to create topic (#1157)
• 69ef92b Fixed issue where closed broker could be used to send metadata request closes #995 (#1160)
• 2340ca2 Error on unsupported message formats (#1151)
• a39bd8d Remove deprecated nsp (#1148)
• 34d29dd add support for DescribeConfigs protocol (#1081)
• 703b7c3 Allow specifying an encoding for ConsumerGroup (#1133)
• e546072 add sslOptions to ConsumerGroupOptions (#1101)
• 91e361d Multiple fixes to message ordering and compression, Fixes #298 (#1072)
• bae641e Don't hang process on shutdown (#797)
• 2185767 3.0.1 (#1078)
• bfcc7ff Fix checking new partitions for topics with dots (#1076)
• 79a49ec Use double ended queue instead of Array for message buffer (#1067)
• 76f6939 Add test for PR #1066 (#1070)
• 4e0477e Only set committing=true if it can be set false later (#1066)
• fd3f578 3.0.0 (#1063)
• 729584b Add node 10 remove node 9 (#1058)
• 475a6bb Add kafka 2 to travis test matrix (#1061)

See the full diff

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