Let froot depend on w

[dweindl]

This should hopefully allow for more efficient computation of root-derivatives by avoiding flattening w into root which, so far, made computing drootdt_total prohibitively expensive in case of large w dependencies in root.

Closes #3022.

[codecov]

Codecov Report

❌ Patch coverage is 68.75000% with 45 lines in your changes missing coverage. Please review.
✅ Project coverage is 77.55%. Comparing base (8fc33dc) to head (c95ca0e).
⚠️ Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
models/model_events_py/model_events_py.h	54.54%	5 Missing ⚠️
...odel_jakstat_adjoint_py/model_jakstat_adjoint_py.h	16.66%	5 Missing ⚠️
...ls/model_nested_events_py/model_nested_events_py.h	54.54%	5 Missing ⚠️
models/model_neuron_py/model_neuron_py.h	50.00%	5 Missing ⚠️
models/model_robertson_py/model_robertson_py.h	16.66%	5 Missing ⚠️
models/model_steadystate_py/model_steadystate_py.h	16.66%	5 Missing ⚠️
models/model_calvetti_py/model_calvetti_py.h	50.00%	4 Missing ⚠️
models/model_dirac_py/model_dirac_py.h	60.00%	4 Missing ⚠️
models/model_dirac_py/deltaqB.cpp	0.00%	1 Missing ⚠️
models/model_events_py/deltaqB.cpp	0.00%	1 Missing ⚠️
... and 5 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3031      +/-   ##
==========================================
- Coverage   78.14%   77.55%   -0.59%     
==========================================
  Files         311      311              
  Lines       20593    20622      +29     
  Branches     1499     1501       +2     
==========================================
- Hits        16092    15993      -99     
- Misses       4491     4619     +128     
  Partials       10       10              

Flag	Coverage Δ
cpp	70.76% <68.75%> (+<0.01%)	⬆️
cpp_python	37.24% <34.02%> (+0.06%)	⬆️
petab	45.86% <78.57%> (+0.05%)	⬆️
petab_sciml	13.76% <12.50%> (-0.04%)	⬇️
python	69.48% <68.75%> (+0.06%)	⬆️
sbmlsuite-jax	?

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

Files with missing lines	Coverage Δ
include/amici/abstract_model.h	100.00% <ø> (ø)
include/amici/model.h	78.04% <ø> (ø)
include/amici/model_dae.h	80.00% <ø> (ø)
include/amici/model_ode.h	100.00% <ø> (ø)
models/model_calvetti_py/explicit_roots.cpp	100.00% <100.00%> (ø)
models/model_calvetti_py/root.cpp	100.00% <100.00%> (ø)
models/model_dirac_py/explicit_roots.cpp	100.00% <100.00%> (ø)
models/model_dirac_py/root.cpp	100.00% <100.00%> (ø)
models/model_dirac_py/stau.cpp	100.00% <100.00%> (ø)
models/model_events_py/explicit_roots.cpp	100.00% <100.00%> (ø)
... and 31 more

... and 7 files with indirect coverage changes

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