Try to fix build

Author: Socolin

src/ImageSharp.Drawing/Shapes/Helpers/ArrayBuilder{T}.cs

@@ -128,7 +128,7 @@ private void EnsureCapacity(int min)
         }
     }
 
-    [MemberNotNull(nameof(this.data))]
+    [MemberNotNull(nameof(data))]
     private void Grow(int capacity)
     {
         // Same expansion algorithm as List<T>.

src/ImageSharp.Drawing/Shapes/PathBuilder.cs

@@ -456,7 +456,7 @@ public PathBuilder Reset()
     /// <summary>
     /// Clears all drawn paths, Leaving any applied transforms.
     /// </summary>
-    [MemberNotNull(nameof(this.currentFigure))]
+    [MemberNotNull(nameof(currentFigure))]
     public void Clear()
     {
         this.currentFigure = new Figure();