Fix Typo and Offset in BufferedReadStream · SixLabors/ImageSharp@ddd4f8c

tests/ImageSharp.Tests/Memory/Allocators/BufferTestSuite.cs#L24

Implement the equality operators and make their behavior identical to that of the Equals method (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2231)

tests/ImageSharp.Tests/TestUtilities/ImageProviders/BlankProvider.cs#L24

'TestImageProvider<TPixel>.TestImageProvider()' is obsolete: 'Called by the de-serializer; should only be called by deriving classes for de-serialization purposes'

tests/ImageSharp.Tests/TestUtilities/ImageProviders/BlankProvider.cs#L15

'TestImageProvider<TPixel>.TestImageProvider()' is obsolete: 'Called by the de-serializer; should only be called by deriving classes for de-serialization purposes'

tests/ImageSharp.Tests/TestUtilities/ImageProviders/FileProvider.cs#L167

'TestImageProvider<TPixel>.TestImageProvider()' is obsolete: 'Called by the de-serializer; should only be called by deriving classes for de-serialization purposes'

tests/ImageSharp.Tests/TestUtilities/ImageProviders/FileProvider.cs#L163

'TestImageProvider<TPixel>.TestImageProvider()' is obsolete: 'Called by the de-serializer; should only be called by deriving classes for de-serialization purposes'

tests/ImageSharp.Tests/TestUtilities/ImageProviders/MemberMethodProvider.cs#L27

'TestImageProvider<TPixel>.TestImageProvider()' is obsolete: 'Called by the de-serializer; should only be called by deriving classes for de-serialization purposes'

tests/ImageSharp.Tests/TestUtilities/ImageProviders/MemberMethodProvider.cs#L23

'TestImageProvider<TPixel>.TestImageProvider()' is obsolete: 'Called by the de-serializer; should only be called by deriving classes for de-serialization purposes'

tests/ImageSharp.Tests/Formats/Icon/Cur/CurEncoderTests.cs#L125

The variable 'xx' is assigned but its value is never used

tests/ImageSharp.Tests/Image/MockImageFormatDetector.cs#L21

The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.

tests/ImageSharp.Tests/TestFormat.cs#L180

The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.