chore(deps): update dependency serverless to v4

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
serverless	3.39.0 -> 4.4.7

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[Jolg42]

Currently fails with

++ npx serverless config credentials --provider aws --key redacted --secret *** --overwrite
Your Nodejs version is too old, please upgrade to Node 18 or newer and rerun Serverless

Which makes sense, we should upgrade the Node.js version here.

[Jolg42]

Note that v4 is currently in Beta

See https://www.npmjs.com/package/serverless

Serverless Framework - V.4 - Beta
May 21st, 2024 – We've released Serverless Framework V.4 Beta after testing the V.4 Alpha for a few months. In this release, we assumed the serverless npm namespace. To continue to use Serverless Framework V.3 and older versions, please target them in your NPM installs (e.g. npm i serverless@3.38.0 3.38.0 is the latest version of v3).
If you need to access documentation for Serverless Framework V.3, you can find it here.
If you are upgrading to V.4, see our Upgrading to Serverless Framework V4 Documentation