Update decoder bases following merge

src/ImageSharp/Formats/ImageDecoder.cs

@@ -177,7 +177,7 @@ public abstract class ImageDecoder : IImageDecoder
             return;
         }
 
-        IccProfile profile = image.Metadata?.IccProfile;
+        IccProfile? profile = image.Metadata?.IccProfile;
         if (profile is not null)
         {
             IccProfileConverter.Convert(image, profile, SrgbV4Profile.GetProfile());

src/ImageSharp/Formats/SpecializedImageDecoder{T}.cs

@@ -25,7 +25,7 @@ public abstract class SpecializedImageDecoder<T> : ImageDecoder, ISpecializedIma
 
         TransformColorProfile(options.GeneralOptions, image);
         this.SetDecoderFormat(options.GeneralOptions.Configuration, image);
-        
+
         return image;
     }
 
@@ -39,7 +39,7 @@ public abstract class SpecializedImageDecoder<T> : ImageDecoder, ISpecializedIma
 
         TransformColorProfile(options.GeneralOptions, image);
         this.SetDecoderFormat(options.GeneralOptions.Configuration, image);
-        
+
         return image;
     }
 
@@ -55,7 +55,7 @@ public abstract class SpecializedImageDecoder<T> : ImageDecoder, ISpecializedIma
 
         TransformColorProfile(options.GeneralOptions, image);
         this.SetDecoderFormat(options.GeneralOptions.Configuration, image);
-        
+
         return image;
     }
 
@@ -70,7 +70,7 @@ public abstract class SpecializedImageDecoder<T> : ImageDecoder, ISpecializedIma
 
         TransformColorProfile(options.GeneralOptions, image);
         this.SetDecoderFormat(options.GeneralOptions.Configuration, image);
-        
+
         return image;
     }