[FR] Update TOML Libraries to use more modern approaches

[eric-forte-elastic]

Repository Feature

Core Repo - (rule management, validation, testing, lib, cicd, etc.)

Problem Description

We currently use two old toml libraries, toml and pytoml. We should update these to be a more modern approach. Additionally. there are certain idiosyncrasies with the existing toml write functionality that translates \\\\ -> \\, etc.

We should consider replacing them with something like tomlkit, but this is still dependant on some of our custom encoding and as such will be a more involved process than something that can be quickly integrated into #4977.

Desired Solution

Update toml write/save_toml.

Considered Alternatives

No response

Additional Context

No response

[eric-forte-elastic]

f1501ca of #4978 replaces the toml string dumps with using json dumps. We are the old list dump function but string is now replaced with a modern approach.

[botelastic]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.