Added support for Amazon 2023, Debian 12, Ubuntu 24.04, removed EOL and BSD OSs and Python 2.7 support

[dmurphy18]

What does this PR do?

Adds support for Amazon 2023, Debian 11 and 12.
Removes support for Debian 7, 8 & 9, RHEL 6, Amazon Linux (RHEL 6 clone) and Python 2.7

What issues does this PR fix or reference?

Fixes: #1940, #1986

Previous Behavior

Amazon 2023, Debian 11 and 12 failed to install with bootstrap script

New Behavior

Amazon 2023, Debian 11 and 12 now install with bootstrap script.
Debian 7, 8 and 9, RHEL 6, Amazon Linux (RHEL 6 clone) and Python 2.7 are no longer supported

[dmurphy18]

Cleaned up script with shellcheck before removing the EOL OS and Python 2.7 support.

[twangboy]

Do you mean to leave all the ## DGM comments?

[dmurphy18]

Ensure the bootstrap script works on Centosstream 8 with redhat-lsb-core installed, it might be affecting distro

[Foorack]

CI indicates this is failing with Failed to run install_debian_onedir_deps()!!!, without any visible Error message.
Do we know why this is failing?

[dmurphy18]

@Foorack WIP - Work In Progress, read the title. Still have to implement GitHub Actions runners

[dmurphy18]

Running into issue with Amazon 2023 with current stable version Ruby 3.3.4 for Create Test Instance, reverting to original 2.6.10

11s
Run ## DGM Need to replace this
-----> Starting Test Kitchen (v3.6.0)
-----> Creating <stable-3006-amazon-2023>...
>>>>>> ------Exception-------
>>>>>> Class: Kitchen::ActionFailed
>>>>>> Message: [1](https://github.com/saltstack/salt-bootstrap/actions/runs/9882490882/job/27295489413?pr=1987#step:6:1) actions failed.
>>>>>>     Create failed on instance <stable-3006-amazon-2023>.  Please see .kitchen/logs/stable-3006-amazon-2023.log for more details
>>>>>> ----------------------
>>>>>> Please see .kitchen/logs/kitchen.log for more details
>>>>>> Also try running `kitchen diagnose --all` for configuration
Error: Process completed with exit code 20.