Add Python 3.12

[BradyPlanden]

Closes #206.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (547f512) 94.58% compared to head (d8071f2) 94.58%.
Report is 1 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #209   +/-   ##
========================================
  Coverage    94.58%   94.58%           
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  Files           44       44           
  Lines         1829     1829           
========================================
  Hits          1730     1730           
  Misses          99       99           

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[BradyPlanden]

As previously discussed, it looks like 3.12 breaks the current scheduled test matrix logic. Mind taking a look at updating it Does the below seem reasonable @agriyakhetarpal?

[BradyPlanden]

An initial thought would be adding something like this:

# Function to check if a PyBaMM version is compatible with a Python version
is_compatible() {
  local pybamm_ver="$1"
  local py_ver="$2"

  # Compatibility check
  if [[ "$pybamm_ver" == "23.5" && "$py_ver" == "3.12" ]]; then
    return 1 # Incompatible
  fi

  return 0 # Compatible
}

and calling it within the matrix construction loop. However, I'm open better methods if available!

Edit: Implemented the above, scheduled tests have ran here: https://github.com/pybop-team/PyBOP/actions/runs/7974984340

[agriyakhetarpal]

Thanks for this, @BradyPlanden – looks great! I have two small comments, feel free to merge when it's ready.