Upgrade Microsoft .Net to 6.0.33 and remove .Net 7.0.* to fix security vunlerabilities.

[LokeshNagireddy]

Hi Team,

There is a security vulnerability with .Net core 6.0.32 and .Net core 7.0.* was end of life.

Can you please perform the update to avoid the security issues?
more info in the below links.
https://dotnet.microsoft.com/en-us/download/dotnet/6.0
https://endoflife.date/dotnet

i look forward for your response.

[nebuk89]

Our plans to remove .net6 are here: https://github.blog/changelog/2024-08-19-notice-of-upcoming-deprecations-and-breaking-changes-in-github-actions-runners/ :)