Fix the ParallelCrash test (#113770)

My recent change has broken this test. For some reason, the TestLibrary
project needs to be referenced from the parent process csproj as well,
otherwise the TestLibrary won't end up in the test directory.

Close #113763

Author: janvorli

src/tests/baseservices/exceptions/simple/ParallelCrashTester.csproj

@@ -12,6 +12,7 @@
     <Compile Include="ParallelCrashTester.cs" />
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="$(TestSourceDir)Common/CoreCLRTestLibrary/CoreCLRTestLibrary.csproj" />
     <ProjectReference Include="ParallelCrash.csproj">
       <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
       <OutputItemType>Content</OutputItemType>