Bump Cpp2IL (#967)

The currently used version doesn't have support for metadata version 29.2 (Unity 2023.2+) and 31 (2022.3.33+)

Author: thegu5

Runtimes/Unity/BepInEx.Unity.IL2CPP/BepInEx.Unity.IL2CPP.csproj

@@ -22,7 +22,7 @@
         <PackageReference Include="Microsoft.Extensions.Logging" Version="6.0.0" IncludeAssets="compile" PrivateAssets="all"/>
         <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="6.0.1" IncludeAssets="compile" PrivateAssets="all"/>
         <PackageReference Include="MonoMod.RuntimeDetour" Version="22.7.31.1"/>
-        <PackageReference Include="Samboy063.Cpp2IL.Core" Version="2022.1.0-development.972"/>
+        <PackageReference Include="Samboy063.Cpp2IL.Core" Version="2022.1.0-pre-release.18"/>
     </ItemGroup>
 
     <!-- CopyLocalLockFileAssemblies causes to also output shared assemblies: https://github.com/NuGet/Home/issues/4837#issuecomment-354536302 -->