Update dependency config to v3.3.6

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
config	3.3.1 -> 3.3.6

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Release Notes

lorenwest/node-config

v3.3.6

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• Added publishConfig element to package.json to prevent publishing to the wrong repository - @​lorenwest

v3.3.4

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• FIX #​517 0 loadFileConfigs incorrectly adds to getConfigSources @​NguyenMatthieu

v3.3.3

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• FIX #​460 - Strict mode warning refer to appropriate env variable @​iCodeOkay
• Use Buffer.alloc and Buffer.from instead of contrsuctor @​Fcmam5
• Add support for experimental .cjs modules @​lenkan

v3.3.2

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• Fixed issue with Buffers in config throwing error in util.makeImmutable (#​608) - Michal Wadas
• Added boolean and numeric types to custom environment variables - Ankur Narkhede @​ankurnarkhede

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