[Enhancement]: csharpier for formatting

[cimnine]

Problem

When I was working on the code, my IDE formatted the code in a way that didn't match the repository's style.

Solution

Format the code with csharpier and automatically check the formatting via a GitHub Action.

Benefit

• It would no longer be a manual task to check if the formatting is correct.
• It would level opinions about the formatting (It's the way the formatter does it and that's the way it is.)

Alternatives

Another formatter, e.g. dotnet format. But that one isn't as rigorous, and it's also slow.

Would you like to help contributing this enhancement?

Yes

[HofmeisterAn]

Thanks for sharing CSharpier. I didn’t know about the project. I definitely agree with both of the benefits you mentioned. Back when I started using Testcontainers, I felt like the tooling around this area wasn't very consistent or reliable. But if CSharpier is solid, it would be a great improvement for the project!