[client-python] chore(deps): update dependency types-pytz to v2026

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
types-pytz (changelog)	>=2025.2.0.20250326,<2025.3.0.0 → >=2026.2.0.20260518,<2026.3.0.0

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 70.34%. Comparing base (68d6c73) to head (128ebe2).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #246   +/-   ##
=======================================
  Coverage   70.34%   70.34%           
=======================================
  Files          49       49           
  Lines        1966     1966           
=======================================
  Hits         1383     1383           
  Misses        583      583           

Flag	Coverage Δ
connectors	70.34% <ø> (ø)

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