feat(python): Update BytecodeParser opcode awareness for upcoming Python 3.14

[alexander-beedie]

It's that time of year again, when Python comes up with new bytecode ops and starts preparing to drop a new release (in early October); got a 3.14rc environment running and went through the disassembler docs to understand the new opcodes 💭

Updates

This year's release primarily adds optimising specialisations of existing ops, and it appears sufficient to make only minor updates to RewrittenInstructions to handle everything.

For example, we can remap the following 3.14 instructions, then parse as normal:

"LOAD_FAST_BORROW" → "LOAD_FAST"
"LOAD_SMALL_INT" → "LOAD_CONST"

There is another small update for subscript access...
"BINARY_OP ([])" → "BINARY_SUBSCR"

...and another new op we can ignore:
"NOT_TAKEN"

Will keep an eye on the next release candidates, but so far this allows all BytecodeParser unit tests to pass 👍

[codecov]

Codecov Report

❌ Patch coverage is 35.71429% with 9 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.34%. Comparing base (4b309cf) to head (450d506).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
py-polars/polars/_utils/udfs.py	35.71%	7 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #23782      +/-   ##
==========================================
- Coverage   81.35%   81.34%   -0.01%     
==========================================
  Files        1651     1651              
  Lines      224251   224261      +10     
  Branches     2862     2866       +4     
==========================================
- Hits       182439   182434       -5     
- Misses      41101    41115      +14     
- Partials      711      712       +1     

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