Require sympy>=1.12.1 for numpy>=2.0 compatibility

[dweindl]

So far, sympy was restricted to <=1.11 via pysb, but sympy 1.11 is incompatible with numpy>=2.0

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.65%. Comparing base (043d13a) to head (f0e341e).
Report is 23 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff              @@
##           develop    #2462       +/-   ##
============================================
+ Coverage    36.66%   77.65%   +40.98%     
============================================
  Files          103      324      +221     
  Lines        14881    20927     +6046     
  Branches      1388     1464       +76     
============================================
+ Hits          5456    16250    +10794     
+ Misses        9116     4674     -4442     
+ Partials       309        3      -306     

Flag	Coverage Δ
cpp	73.41% <ø> (?)
cpp_python	34.09% <ø> (?)
petab	36.66% <ø> (ø)
python	72.19% <ø> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

see 289 files with indirect coverage changes