[ci] Alma10 Clang Ninja: compression and image libs as builtins

To check the new builtin treatment works well on linux

Author: dpiparo

.github/workflows/root-ci-config/buildconfig/alma10-clang_ninja.txt

@@ -2,6 +2,11 @@ CMAKE_C_COMPILER=clang
 CMAKE_CXX_COMPILER=clang++
 CMAKE_GENERATOR=Ninja
 builtin_vdt=ON
+builtin_gif=ON
+builtin_jpeg=ON
+builtin_png=ON
+builtin_lz4=ON
+builtin_lzma=ON
 builtin_zlib=ON
 builtin_zstd=ON
 pythia8=ON

.github/workflows/root-ci.yml

@@ -413,7 +413,7 @@ jobs:
           - image: alma10
             platform_config: alma10-clang_ninja
             is_special: true
-            property: "clang Ninja"
+            property: "clang Ninja builtin"
             overrides: ["CMAKE_CXX_STANDARD=20"]
           # Fedora Rawhide with Python debug build
           - image: rawhide