chore(py): Update python lockfile

[aborgna-q]

Updates the python lockfile to close dependabot's vulnerability alerts:

• https://github.com/CQCL/hugr/security/dependabot/4
• https://github.com/CQCL/hugr/security/dependabot/3

Fixes a test that was constructing the wrong type (Version vs SemanticVersion)

drive-by: Remove leftover poetry.lock

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.54%. Comparing base (6c0d799) to head (2a248dd).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1867   +/-   ##
=======================================
  Coverage   86.54%   86.54%           
=======================================
  Files         194      194           
  Lines       35264    35264           
  Branches    32077    32077           
=======================================
+ Hits        30518    30519    +1     
+ Misses       2969     2968    -1     
  Partials     1777     1777           

Flag	Coverage Δ
python	92.34% <ø> (+0.03%)	⬆️
rust	85.96% <ø> (ø)

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[cqc-alec]

Do you understand the failure in "Check serialization schema"?

[aborgna-q]

Looks to be caused by a change in schema generation for enums in pydantic 2.10:

• Blog post: https://pydantic.dev/articles/pydantic-v2-10-release#tidy-up-json-schema-generation-for-literals-and-enums
• PR: Change JSON schema generation of literals and enums pydantic/pydantic#10692

It seems harmless