fix: outdated .net framework prevents test execution on apple silicon

[Meerownymous]

Please check if the PR fulfills these requirements

• I made sure that my code builds
• I merged the master into this branch before pushing
• The commit message follows our guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce?** (check one with "x")

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Other... Please describe:

What is the current behavior? (You can also link to an open issue here)

Cannot test on apple silicon machine

What is the new behavior?

closes #546

Does this PR introduce a breaking change? (check one with "x")

• Yes
• No

If this PR contains a breaking change, please describe the impact and migration path for existing applications

Other information

Updated to .Net7.0 which needs to be present on contributors machines.

[MSE1188]

The CI is failing, because the environment variables cannot be read, probably because of your fork. I added a flag to only validating the variables on release. Please merge main here

[Meerownymous]

done

[MSE1188]

closed via #550