drop Python 3.9 support and add add 3.14 to CI

Author: ozekik

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
   test:
     strategy:
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
     runs-on: ubuntu-latest
 
     steps:

poetry.lock

@@ -14,7 +14,7 @@ homepage = "https://digitalformallogic.github.io/mathesis/"
 repository = "https://github.com/digitalformallogic/mathesis"
 
 [tool.poetry.dependencies]
-python = "^3.9"
+python = "^3.10"
 lark = "^1.1.2"
 anytree = "^2.8.0"
 prettytable = "^3.3.0"