How to reproduce:
1. Open the project “IN-123390_NativePluginPDBRepro”
2. In the Project tab, Look in Plugins/x64 and observe that there is a native plugin (SimpleUnityPlugin.dll) as well as its accompanying PDB file (SimpleUnityPlugin.pdb)
3. Go to File -> Build Profiles, select the Windows profile, and confirm that 'Copy PDB files' is checked
4. Build the project
5. In Windows Explorer, navigate to the Build folder, and look inside the Data folder -> Plugins/x86_64
6. Observe the files

Expected result: Both SimpleUnityPlugin.dll and SimpleUnityPlugin.pdb are present
Actual result: Only SimpleUnityPlugin.dll is present

Reproducible with: 2023.1.0a1, 6000.0.62f1, 6000.2.12f1, 6000.3.0b9, 6000.4.0a4, 6000.5.0a2

Reproducible on: Windows 11
Not reproducible on: No other environments tested

Note: the PDB missing means that we're not able to correctly symbolicate stack traces involving the native DLL, reducing the quality of crash and error data from the built game