[FEATURE] Update code runtime to dotnet 6.0

[Cingulara]

Is your feature request related to a problem? Please describe. Update runtime to botnet 6.0 on all MSG and API projects. Update components to match for NuGet.

Describe the solution you'd like All codebases and NuGet packages are .net 6.0 compliant and the Dockerfiles build correctly to catch this up.

Describe alternatives you've considered A clear and concise description of any alternative solutions or features you've considered.

Additional context

• Dockerfile has to build from the 6.0 SDK

  FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build-env

• GZIP compression is a breaking change so be aware of this:

  public static string DecompressString(string compressedText)
      {
          byte[] gZipBuffer = Convert.FromBase64String(compressedText);
          using (var memoryStream = new MemoryStream())
          {
              int dataLength = BitConverter.ToInt32(gZipBuffer, 0);
              memoryStream.Write(gZipBuffer, 4, gZipBuffer.Length - 4);
  
              var buffer = new byte[dataLength];
  
              memoryStream.Position = 0;
              int gzipBytesRead = 0;
              int bytesRead = 0;
              using (var gZipStream = new GZipStream(memoryStream, CompressionMode.Decompress))
              {
                  //gzipBytesRead = gZipStream.Read(buffer, 0, buffer.Length);
                  while (gzipBytesRead < buffer.Length)
                  {
                      bytesRead = gZipStream.Read(buffer, gzipBytesRead, buffer.Length-gzipBytesRead);
                      if (bytesRead == 0) break;
                      gzipBytesRead += bytesRead;
                  }
              }
  
              return Encoding.UTF8.GetString(buffer);
          }
      }

[Cingulara]

Also need to make sure any test projects update the runtime as well.