CI: Merge all CI into one pr validation & install NET8 before buildling

[mee-ironsoftware]

Description

This reduces the pipeline if someone want to manual trigger all of it. Also add 3 checkmarks to skip each platform test.

Type of change

Please select the relevant option by placing an 'x' inside the brackets, like this: [x].

• [ ] 🐛 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 not work as expected)
• [ ] 🏗️ Internal/structural update (non-breaking change that improves code quality, organization, or performance)
• [ ] 📚 This change requires a documentation update
• [X] 🚀 DevOps build chain modification for release
• [ ] 🤖 DevOps build chain modification for CI

How Has This Been Tested?

Run IronDrawig PR Validation pipeline.

Checklist:

Please run through the checklist as much as possible and mark the items completed by placing an 'x' inside the brackets, like this: [x].

• [X] My code follows the style guidelines of this project
• [X] I have performed a self-review of my own code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [X] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass locally with my changes
• [ ] I have successfully run all unit tests on Windows
• [ ] I have successfully run all unit tests on Linux

[mee-ironsoftware]

You know this best.

I'll merge it after it successfully runs.