CI: run version-matrix on ubuntu-latest

Author: mgeier

.github/workflows/version-matrix.yml

@@ -9,7 +9,7 @@ env:
   PYTHON_VERSION: "3"
 jobs:
   version-matrix:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix: