chore(deps): update dependency splat.drawing to 15.4.1 (#1034)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

src/Akavache.Drawing/Akavache.Drawing.csproj

@@ -14,7 +14,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Splat.Drawing" Version="15.3.1" />
+    <PackageReference Include="Splat.Drawing" Version="15.4.1" />
     <PackageReference Include="Microsoft.NET.ILLink.Tasks" Version="9.0.6" />
   </ItemGroup>
 </Project>