[CHEF-18664] Updated the shell-init command to work with habitat and omnibus installations

[ashiqueps]

Description

The shell-init command will now identify the installation type and initialize the shell based on that. It supports the habitat-based installation, whether a standalone one or with chef-development-kit-enterprise and the omnibus installation.

Related Issue

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Chore (non-breaking change that does not add functionality or fix an issue)

Checklist:

• I have read the CONTRIBUTING document.
• I have run the pre-merge tests locally and they pass.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• If Gemfile.lock has changed, I have used --conservative to do it and included the full output in the Description above.
• All new and existing tests passed.
• All commits have been signed-off for the Developer Certificate of Origin.

[sonarqube-for-infrastructure-prod]

Quality Gate failed

Failed conditions
8 New issues
0.0% Coverage on New Code (required ≥ 80%)

See analysis details on SonarQube

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[sonarqubecloud]

Quality Gate passed

Issues
4 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud