Update supported Python versions

Author: peterthomassen

.github/workflows/e2e.yml

@@ -15,11 +15,11 @@ jobs:
       # For example, pypy2 and pypy3
       matrix:
         python-version: [
-          '3.9',
           '3.10',
           '3.11',
           '3.12',
           '3.13',
+          '3.14',
         ]
         certbot-version: [
           '2.11.1',

.github/workflows/main.yml

@@ -14,11 +14,11 @@ jobs:
       # For example, pypy2 and pypy3
       matrix:
         python-version: [
-          '3.9',
           '3.10',
           '3.11',
           '3.12',
           '3.13',
+          '3.14',
         ]
         certbot-version: [
           '2.11.1',

setup.py

@@ -27,7 +27,7 @@
     author="Nils Wisiol",
     author_email="nils@desec.io",
     license="Apache License 2.0",
-    python_requires=">=3.9",
+    python_requires=">=3.10",
     packages=find_packages(),
     include_package_data=True,
     install_requires=install_requires,