Bump SkiaSharp and native assets from 3.119.4 to 4.150.0

SkiaSharp and SkiaSharp.NativeAssets.Linux.NoDependencies must move in
lockstep: the managed P/Invoke signatures must match the native binary.
Bumping only the native package left the 3.119.4 managed library in
place, so rasterization failed at runtime (MonumentIconSourceTests).
Svg.Skia 5.1.1's `>= 3.119.2` constraint is satisfied by 4.150.0 and
stays binary-compatible.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: 2 people

Directory.Packages.props

@@ -23,8 +23,8 @@
     <PackageVersion Include="Serilog.Sinks.File" Version="7.0.0" />
     <PackageVersion Include="SixLabors.ImageSharp" Version="3.1.12" />
     <PackageVersion Include="SixLabors.ImageSharp.Drawing" Version="2.1.7" />
-    <PackageVersion Include="SkiaSharp" Version="3.119.4" />
-    <PackageVersion Include="SkiaSharp.NativeAssets.Linux.NoDependencies" Version="3.119.4" />
+    <PackageVersion Include="SkiaSharp" Version="4.150.0" />
+    <PackageVersion Include="SkiaSharp.NativeAssets.Linux.NoDependencies" Version="4.150.0" />
     <!-- Pinned to override the transitive 2.1.11 pulled by Microsoft.EntityFrameworkCore.Sqlite,
          whose bundled SQLite is vulnerable to CVE-2025-6965 (GHSA-2m69-gcr7-jv3q). 3.0.x bundles
          SQLite >= 3.50.2. Drop once EF Core ships a build that depends on a patched SQLitePCLRaw. -->