[ci] Use alma8 image with Python 3.12

Author: guitargeek

…ows/root-ci-config/buildconfig/alma8.txt …ot-ci-config/buildconfig/alma8-py312.txt.github/workflows/root-ci-config/buildconfig/alma8.txt renamed to .github/workflows/root-ci-config/buildconfig/alma8-py312.txt .github/workflows/root-ci-config/buildconfig/alma8.txt renamed to .github/workflows/root-ci-config/buildconfig/alma8-py312.txt

@@ -378,7 +378,7 @@ jobs:
           - image: fedora43
             overrides: ["CMAKE_CXX_STANDARD=23"]
             is_special: true
-          - image: alma8
+          - image: alma8-py312
           - image: alma9
             overrides: ["CMAKE_BUILD_TYPE=Debug"]
           - image: alma10