Please upgrade the project to dotnet 6 version

[nirzaf]

Is your feature request related to a problem? Please describe.
Since dotnet core 2.1 is outdated please upgrade all the projects to the dotnet 6 LTS version and update C# syntax to version 10

Describe the solution you'd like
update all projects including all NuGet packages

[github-actions]

Thanks for supporting the development of C# Algorithms with your first issue! We look forward to handling it.

[FunkyMonk8111]

Have a fix for this but getting permission errors? Can someone please help - Failed to push to the remote repository. See the Output window for more details.
Pushing refs/heads/master
Remote: Permission to aalhour/C-Sharp-Algorithms.git denied to FunkyMonk8111.
Error encountered while pushing to the remote repository: Git failed with a fatal error.
Git failed with a fatal error.
unable to access 'https://github.com/aalhour/C-Sharp-Algorithms.git/': The requested URL returned error: 403

Failed to push to the remote repository. See the Output window for more details.

[Indeedornot]

Sorry, but did you just try to push straight into the repository rather than making a pull request?

[Indeedornot]

I'd also like to point out that OP has made a pull request that has yet to be reviewed regarding this.
However it is not linked here

#167

[FunkyMonk8111]

Ok, so it did go through? I keep getting an error and I didnt know who to contact..the readme wasnt clear who to contact in case of any issues.