Ambiguous overloads for Vector3f operators in edm4hep and edm4eic

[wdconinc]

Environment: (where does this bug occur, have you tried other environments)

• Which branch (often main for latest released): 3.0.1
• Which version (or HEAD for the most recent on git): 3.0.1
• Any specific OS or system where the issue occurs? on my local system
• Any special versions of ROOT or Geant4? nothing special, edm4hep-0.9, edm4eic-3.0.1, no modifications

Steps to reproduce: (give a step by step account of how to trigger the bug)

1. Attempt to compile EICrecon

Expected Result: (what do you expect when you execute the steps above)

Compilation should not fail due to ambiguous overloads in the data models.

Actual Result: (what do you get when you execute the steps above)

/home/wdconinc/git/EICrecon/src/algorithms/pid/ParticlesWithPID.cc: In member function ‘bool eicrecon::ParticlesWithPID::linkCherenkovPID(edm4eic::MutableReconstructedParticle&, const edm4eic::CherenkovParticleIDCollection&, edm4hep::ParticleIDCollection&)’:
/home/wdconinc/git/EICrecon/src/algorithms/pid/ParticlesWithPID.cc:263:69: error: ambiguous overload for ‘operator/’ (operand types are ‘const edm4hep::Vector3f’ and ‘std::size_t’ {aka ‘long unsigned int’})
  263 |                 in_track_p = in_track_p + ( in_track_point.momentum / in_track.points_size() );
      |                                             ~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~
      |                                                            |                              |
      |                                                            const edm4hep::Vector3f        std::size_t {aka long unsigned int}
In file included from /home/wdconinc/git/EICrecon/src/algorithms/pid/ParticlesWithPID.cc:6:
/opt/local/include/edm4eic/vector_utils.h:153:34: note: candidate: ‘V operator/(const V&, double) [with V = edm4hep::Vector3f]’
  153 | template <edm4eic::VectorND V> V operator/(const V& v, const double d) {
      |                                  ^~~~~~~~
In file included from /home/wdconinc/git/EICrecon/src/algorithms/pid/ParticlesWithPID.cc:7:
/opt/local/include/edm4hep/utils/vector_utils.h:266:20: note: candidate: ‘constexpr V edm4hep::operator/(const V&, double) [with V = Vector3f]’
  266 | inline constexpr V operator/(const V& v, const double d) {
      |                    ^~~~~~~~

Additional Context

I consider this a bug on the edm4eic side, since we should be able to reuse the edm4hep vector utils. I also wonder why this suddenly doesn't work anymore (I'm experimenting with c++20 support, so maybe template resolution rules are slightly different such that constexpr is now treated as different from non-constexpr).