Download install sh from new download api

[ashiqueps]

Description

The install.sh and install.ps1 files are moved to the new download API and maintained there. If the options has the new key, instead of building the file, download it from the new download api.

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.

[sonarqubecloud]

Quality Gate passed

Issues
0 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 SonarCloud

[jaymzh]

Thanks!

[jaymzh]

After discussion, this PR isn't the cause of the failure, so we'll merge.

However, we do need to fix the build, and here's the context, so that it is written down somewhere:

This repo (mixlib-install), is the bootstrap mechanism for folks to get a modern build of ruby from a system ruby which may be old, and may be even an unsupported version. So, we need to look at all supported platforms, determine the oldest system ruby, and then bump our min version to that (or, that may mean keeping it where it is), then fixing our rubygem dependencies to accommodate that version.