Drop Python 3.8/3.9, add 3.12-3.14, bump all dependencies and hooks

Python 3.8 (EOL Oct 2024) and 3.9 (EOL Oct 2025) are no longer
supported. This unblocks bumping to latest package versions.

Runtime: Click 8.1.7→8.3.1, pytz 2024.1→2026.1.post1,
PyYAML 6.0.1→6.0.3, requests 2.32.3→2.33.0, tabulate 0.9.0→0.10.0

Dev: mypy 1.10.1→1.19.1, pre-commit 3.3.3→4.5.1, pylint 3.2.5→4.0.5

Pre-commit hooks: mirrors-autopep8 v1.5.1→v2.0.4,
pre-commit-hooks v2.5.0→v6.0.0, flake8 3.9.2→7.3.0,
pyupgrade v1.27.0→v3.21.2, mirrors-isort v4.3.21→v5.10.1

Removed deprecated seed-isort-config (unnecessary with isort>=5).
Updated Dockerfile base from python:3.8 to python:3.13.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: nsa-softpay

.pre-commit-config.yaml

@@ -1,10 +1,10 @@
 repos:
 -   repo: https://github.com/pre-commit/mirrors-autopep8
-    rev: v1.5.1
+    rev: v2.0.4
     hooks:
     -   id: autopep8
 -   repo: https://github.com/pre-commit/pre-commit-hooks.git
-    rev: v2.5.0
+    rev: v6.0.0
     hooks:
     -   id: check-added-large-files
     -   id: check-ast
@@ -26,19 +26,15 @@ repos:
     -   id: requirements-txt-fixer
     -   id: trailing-whitespace
 -   repo: https://github.com/pycqa/flake8
-    rev: 3.9.2
+    rev: 7.3.0
     hooks:
     -   id: flake8
 -   repo: https://github.com/asottile/pyupgrade
-    rev: v1.27.0
+    rev: v3.21.2
     hooks:
     -   id: pyupgrade
-        args: ['--py3-plus']
--   repo: https://github.com/asottile/seed-isort-config
-    rev: v1.9.4
-    hooks:
-    -   id: seed-isort-config
+        args: ['--py310-plus']
 -   repo: https://github.com/pre-commit/mirrors-isort
-    rev: v4.3.21
+    rev: v5.10.1
     hooks:
     -   id: isort