Update *Ubuntu* and *Python* version of *RtD* and configuration artifacts generation.

Signed-off-by: Thomas Mansencal <thomas.mansencal@gmail.com>

Author: KelSolaar

.github/workflows/configuration-artifacts.yml

@@ -7,8 +7,8 @@ jobs:
     name: ${{ matrix.os }} - Python ${{ matrix.python-version }}
     strategy:
       matrix:
-        os: [ubuntu-20.04]
-        python-version: [3.11]
+        os: [ubuntu-latest]
+        python-version: [3.13]
       fail-fast: false
     runs-on: ${{ matrix.os }}
     steps:

.readthedocs.yaml

@@ -1,9 +1,9 @@
 version: 2
 
 build:
-  os: ubuntu-20.04
+  os: ubuntu-24.04
   tools:
-    python: "3.9"
+    python: "3.13"
   apt_packages:
     - graphviz
     - graphviz-dev