Action failed with "The process 'C:\Program Files\Git\bin\git.exe' failed with exit code 128"

Nullability of reference types in type of parameter 'x' of 'bool ColourArrayEqualityComparer.Equals(Colour[] x, Colour[] y)' doesn't match implicitly implemented member 'bool IEqualityComparer<Colour[]>.Equals(Colour[]? x, Colour[]? y)' (possibly because of nullability attributes).

Nullability of reference types in type of parameter 'y' of 'bool ColourArrayEqualityComparer.Equals(Colour[] x, Colour[] y)' doesn't match implicitly implemented member 'bool IEqualityComparer<Colour[]>.Equals(Colour[]? x, Colour[]? y)' (possibly because of nullability attributes).

This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.

Non-nullable field 'imageSharpImageConverter' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.