Bump Krafs.Rimworld.Ref from 1.6.4518 to 1.6.4523 (#171)

---
updated-dependencies:
- dependency-name: Krafs.Rimworld.Ref
  dependency-version: 1.6.4523
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

LevelUp.csproj

@@ -16,7 +16,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Krafs.Rimworld.Ref" Version="1.6.4518" />
+    <PackageReference Include="Krafs.Rimworld.Ref" Version="1.6.4523" />
     <PackageReference Include="Lib.Harmony" Version="2.3.6" ExcludeAssets="runtime" />
   </ItemGroup>