Update Python requirements against NEP 29

Bumps the CI matrix to 3.12, 3.13, 3.14. NEP 29 dropped 3.11 on
2026-04-24, so 3.10 and 3.11 are no longer in scope.

Author: ndevenish

.github/workflows/python.yml

@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.10", "3.11", "3.12"]
+        python-version: ["3.12", "3.13", "3.14"]
 
     steps:
       - uses: actions/checkout@v6

pyproject.toml

@@ -19,7 +19,7 @@ classifiers = [
     "Topic :: Software Development :: Libraries :: Python Modules",
 ]
 license = { text = "BSD-3-Clause" }
-requires-python = ">=3.10"
+requires-python = ">=3.12"
 dependencies = [
     "bidict", 
     "pika",