ci: update nuget workflow · matigramirez/Parsec@c38378b

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

Non-nullable field '_path' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable field '_safWriter' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable property 'Heightmap' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'TextureMap' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'RootDirectory' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Dereference of a possibly null reference.

Possible null reference argument for parameter 'bytes' in 'void SBinaryWriter.Write(byte[] bytes)'.

Converting null literal or possible null value to non-nullable type.

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