fix: src/TestSite.14/TestSite.14.csproj to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-DOTNET-SIXLABORSIMAGESHARP-7547406
- https://snyk.io/vuln/SNYK-DOTNET-SIXLABORSIMAGESHARP-7547407

src/TestSite.14/TestSite.14.csproj

@@ -7,7 +7,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Umbraco.Cms" Version="14.1.2"/>
+		<PackageReference Include="Umbraco.Cms" Version="14.2.0"/>
 		<PackageReference Include="uSync" Version="14.0.0"/>
 	</ItemGroup>