Fix various CI issues

[JCGoran]

• NumPy 1.21.3 has the wrong tag on MacOS with Python 3.10, so pip check started failing
• NumPy was not being installed on Python 3.9 on aarch64 due to missing arch spec
• mpi4py version 4 does not appear to be compatible with MUSIC, so we pin it to <4 everywhere

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[azure-pipelines]

✔️ e721ab0 -> Azure artifacts URL

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.28%. Comparing base (4557662) to head (e721ab0).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3017      +/-   ##
==========================================
- Coverage   67.28%   67.28%   -0.01%     
==========================================
  Files         572      572              
  Lines      104974   104975       +1     
==========================================
  Hits        70629    70629              
- Misses      34345    34346       +1     

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[bbpbuildbot]

Logfiles from GitLab pipeline #224073 (:white_check_mark:) have been uploaded here!

Status and direct links:

• ✅ mac_m1_cmake_build: [cmake, ON, OFF, OFF, address]
• ✅ spack_setup
• ✅ build:nmodl
• ✅ build:neuron:nmodl:intel:legacy
• ✅ build:neuron:nmodl:intel:shared
• ✅ build:neuron:nmodl:nvhpc:acc:legacy
• ✅ build:neuron:nmodl:nvhpc:acc:shared
• ✅ build:neuron:nmodl:nvhpc:omp:legacy
• ✅ build:neuron:nmodl:nvhpc:omp
• ✅ test:neuron:nmodl:intel:legacy
• ✅ test:neuron:nmodl:intel:shared
• ✅ test:neuron:nmodl:nvhpc:acc:legacy
• ✅ test:neuron:nmodl:nvhpc:acc:shared
• ✅ test:neuron:nmodl:nvhpc:omp:legacy
• ✅ test:neuron:nmodl:nvhpc:omp