Add using keywords to non-disposed objects in BuildThumbCollageBitmap

Jellyfin.Drawing.Skia/StripCollageBuilder.cs

@@ -112,7 +112,7 @@ namespace Jellyfin.Drawing.Skia
             canvas.DrawImage(residedBackdrop, 0, 0);
 
             // draw shadow rectangle
-            var paintColor = new SKPaint
+            using var paintColor = new SKPaint
             {
                 Color = SKColors.Black.WithAlpha(0x78),
                 Style = SKPaintStyle.Fill
@@ -130,7 +130,7 @@ namespace Jellyfin.Drawing.Skia
             }
 
             // draw library name
-            var textPaint = new SKPaint
+            using var textPaint = new SKPaint
             {
                 Color = SKColors.White,
                 Style = SKPaintStyle.Fill,
@@ -149,9 +149,6 @@ namespace Jellyfin.Drawing.Skia
 
             canvas.DrawText(libraryName, width / 2f, (height / 2f) + (textPaint.FontMetrics.XHeight / 2), textPaint);
 
-            paintColor.Dispose();
-            textPaint.Dispose();
-
             return bitmap;
         }