260204.213507.CET update test_armflang to use the latest open-source Arm Toochain for Linux

Author: zaikunzhang

.github/scripts

@@ -27,7 +27,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-22.04-arm]  # As of February 2026, Arm Fortran compiler only supports Ubuntu 22.04
+        os: [ubuntu-22.04-arm, ubuntu-24.04-arm]
         solver: [newuoa, cobyla, lincoa, bobyqa, uobyqa]
         fflags: [-O1, -O2, -O3, -g, -fast]
         testdim: [small, big]
@@ -65,8 +65,8 @@ jobs:
       - name: Miscellaneous setup
         run: bash .github/scripts/misc_setup
 
-      - name: Install Arm Fortran compiler
-        run: bash .github/scripts/install_armflang
+      - name: Install Arm Toolchain for Linux
+        run: bash .github/scripts/install_atfl
 
       - name: Revise bobyqa/trustregion.f90 to see why `xbdi(trueloc(xopt >= su .and. gopt <= 0)) = 1` leads to a SIGFPE
         shell: bash