EDM4eic CMake config in non-canonical location

### Environment: (where does this bug occur, have you tried other environments)
- Which branch (often `main` for latest released): main
- Which version (or `HEAD` for the most recent on git): 2.1.0
- Any specific OS or system where the issue occurs? eic-shell
- Any special versions of ROOT or Geant4? No

### Steps to reproduce: (give a step by step account of how to trigger the bug)
1. `/usr/local/lib/cmake/EDM4HEP/EDM4HEPTargets.cmake`
2. `/usr/local/lib/EDM4EIC/EDM4EICTargets.cmake`

### Expected Result: (what do you expect when you execute the steps above)
CMake config files should be in `/usr/local/lib/cmake`.

Start by inspecting the CMake install and package configuration that produces /usr/local/lib/cmake/EDM4HEP/EDM4HEPTargets.cmake and /usr/local/lib/EDM4EIC/EDM4EICTargets.cmake. Reproduce the installation in eic-shell, then verify that the EDM4EIC config is placed under /usr/local/lib/cmake alongside the EDM4HEP config.

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