Bump LiteDB and LiteDB.Async

Bumps [LiteDB](https://github.com/mbdavid/LiteDB) and [LiteDB.Async](https://github.com/mlockett42/litedb-async). These dependencies needed to be updated together.

Updates `LiteDB` from 5.0.16 to 5.0.20
- [Release notes](https://github.com/mbdavid/LiteDB/releases)
- [Commits](litedb-org/LiteDB@v5.0.16...v5.0.20)

Updates `LiteDB.Async` from 0.1.6 to 0.1.8
- [Commits](mlockett42/litedb-async@v0.1.6...v0.1.8)

---
updated-dependencies:
- dependency-name: LiteDB
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: LiteDB.Async
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

StabilityMatrix/StabilityMatrix.csproj

@@ -19,8 +19,8 @@
     <PackageReference Include="Blake3" Version="0.5.1" />
     <PackageReference Include="CommunityToolkit.Mvvm" Version="8.2.1" />
     <PackageReference Include="FuzzySharp" Version="2.0.2" />
-    <PackageReference Include="LiteDB" Version="5.0.16" />
-    <PackageReference Include="LiteDB.Async" Version="0.1.6" />
+    <PackageReference Include="LiteDB" Version="5.0.20" />
+    <PackageReference Include="LiteDB.Async" Version="0.1.8" />
     <PackageReference Include="MdXaml" Version="1.20.1" />
     <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="7.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="7.0.0" />