Update plan for fork-only dependency strategy

Agent-Logs-Url: https://github.com/winnerspiros/osu/sessions/856f044f-122d-4126-982b-a9169127e3dd

Co-authored-by: winnerspiros <1675249+winnerspiros@users.noreply.github.com>

Author: Copilot

osu.Game/osu.Game.csproj

@@ -38,7 +38,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="Realm" Version="20.1.0" />
-    <PackageReference Include="ppy.osu.Framework" Version="2026.420.3" />
+    <PackageReference Include="ppy.osu.Framework" Version="2026.416.0" />
     <PackageReference Include="ppy.osu.Game.Resources" Version="2026.420.0" />
     <PackageReference Include="Sentry" Version="6.2.0" />
     <!-- Held back due to 0.34.0 failing AOT compilation on ZstdSharp.dll dependency. -->