Bump Oracle.ManagedDataAccess from 19.12.0 to 21.6.1 (#3063)

Author: dependabot[bot]

src/NHibernate.Test/NHibernate.Test.csproj

@@ -74,7 +74,7 @@
     <Reference Include="System.Threading.Tasks" />
     <Reference Include="System.Data.OracleClient" />
     <PackageReference Include="Microsoft.SqlServer.Compact" Version="4.0.8876.1" />
-    <PackageReference Include="Oracle.ManagedDataAccess" Version="19.12.0" />
+    <PackageReference Include="Oracle.ManagedDataAccess" Version="21.6.1" />
   </ItemGroup>
   <ItemGroup Condition="'$(TargetFramework)'=='net6.0'">
     <PackageReference Include="Microsoft.AspNetCore.TestHost" Version="6.0.1" />