chore(deps): update dependency xunit.stafact to v2

Author: renovate[bot]

src/Akavache.Tests/Akavache.Tests.csproj

@@ -19,7 +19,7 @@
     <PackageReference Include="xunit.runner.console" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.0.2" />
     <PackageReference Include="Xunit.SkippableFact" Version="1.5.23" />
-    <PackageReference Include="Xunit.StaFact" Version="1.2.69" />
+    <PackageReference Include="Xunit.StaFact" Version="2.0.44" />
     <PackageReference Include="ReactiveUI.Testing" Version="20.2.45" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
     <PackageReference Include="SQLitePCLRaw.bundle_e_sqlite3" Version="2.1.11" />