Configure mypy to target Python 3.14 and update to v1.20.0

Agent-Logs-Url: https://github.com/TheAlgorithms/Python/sessions/332481be-4c5f-4412-abf8-6ef4a3913828

Co-authored-by: cclauss <3709715+cclauss@users.noreply.github.com>

Author: Copilot

.pre-commit-config.yaml

@@ -50,7 +50,7 @@ repos:
       - id: validate-pyproject
 
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.19.1
+    rev: v1.20.0
     hooks:
       - id: mypy
         args:

pyproject.toml

@@ -158,6 +158,9 @@ lint.pylint.max-branches = 20  # default: 12
 lint.pylint.max-returns = 8  # default: 6
 lint.pylint.max-statements = 88  # default: 50
 
+[tool.mypy]
+python_version = "3.14"
+
 [tool.codespell]
 ignore-words-list = "3rt,abd,aer,ans,bitap,crate,damon,fo,followings,hist,iff,kwanza,manuel,mater,secant,som,sur,tim,toi,zar"
 skip = """\