Fix again

Author: amykhuang

.github/workflows/libc-fullbuild-tests.yml

@@ -15,12 +15,18 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        # Build linux configuration with Debug, Release, and MinSizeRel.
-        # Build all other configurations in only Debug.
-        build_type: [Debug, Release, MinSizeRel]
-        os: [ubuntu-24.04]
+        # Build basic linux configuration with Debug and MinSizeRel and all
+        # other configurations in Debug only.
         include:
           - os: ubuntu-24.04
+            build_type: Debug
+            ccache-variant: sccache
+            c_compiler: clang-21
+            cpp_compiler: clang++-21
+            target: x86_64-unknown-linux-llvm
+            include_scudo: ON
+          - os: ubuntu-24.04
+            build_type: MinSizeRel
             ccache-variant: sccache
             c_compiler: clang-21
             cpp_compiler: clang++-21