doesn't work with dotnet-format v5.0.211103

[Guria]

Run xt0rted/dotnet-format@v1
  with:
    repo-token: ***
    action: check
    fail-fast: true
  env:
    DOTNET_ROOT: /home/runner/.dotnet
/home/runner/.dotnet/dotnet format --check --dry-run
  The file '--dry-run' does not appear to be a valid project or solution file.
Error: Formatting issues found

https://github.com/dotnet/format#new-in-v50211103

[xt0rted]

There were a couple breaking changes in v4 and v5. I started working on an update for this but haven't had the time to finish it. I'm hoping to spend some time over the next week or two on this since it's a blocker for my projects now as well.

[ceberttylertech]

@xt0rted are you open to contributions for this issue or would you rather do it yourself?

[xt0rted]

@ceberttylertech this work turned into a much larger project than I expected due to issues with dotnet format as well as some personal things that have been holding me up.

The work is pretty much done. #194 adds support for v4 and I have a version for v5 & v6 previews that's waiting for that PR to be merged. The reason it hasn't been merged yet is:

1. dotnet format is throwing exceptions in some versions on macOS but not on other platforms.
2. The results don't match between platforms so the output may show issues on one platform but not on the others.
3. Regressions between versions where issues aren't reported in newer versions that were in older versions. This may be due to the new parameters you can pass in but I haven't been able to confirm.
4. Passing arguments to dotnet format with @actions/exec doesn't work with v4 or v5 the same as it did with v3 or as it does on the command line (the same is true for other libraries including sindresorhus/execa) so dotnet format ends up not running as you intended or it simply errors out in some cases.

I was testing a workaround for passing the arguments in and that seems to be working now but I still need to open an issue in dotnet/format with all of my findings and make sure what I'm doing is correct. I'm going to try and put this together over the weekend so more progress can be made here.