Roll back RTD Python

Author: wRAR

.github/workflows/test.yml

@@ -67,7 +67,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.13"]
+        python-version: ["3.12"]  # Keep in sync with .readthedocs.yml
         tox-job: ["mypy", "linters", "twine-check", "docs"]
 
     steps:

.readthedocs.yml

@@ -5,7 +5,7 @@ sphinx:
 build:
   os: ubuntu-22.04
   tools:
-    python: "3.13"  # Keep in sync with .github/workflows/test.yml
+    python: "3.12"  # Keep in sync with .github/workflows/test.yml
 python:
   install:
     - requirements: docs/requirements.txt