Add Valgrind option ci

Author: mcbarton

.github/workflows/main.yml

@@ -31,6 +31,7 @@ jobs:
             cppyy: Off
             llvm_enable_projects: "clang"
             llvm_targets_to_build: "host;NVPTX"
+            Valgrind: On
           - name: ubu24-arm-gcc12-clang-repl-19-cppyy
             os: ubuntu-24.04-arm
             compiler: gcc-12
@@ -67,6 +68,7 @@ jobs:
             llvm_targets_to_build: "host;NVPTX"
             coverage: true
             oop-jit: On
+            Valgrind: On
           - name: ubu24-x86-gcc12-clang-repl-20
             os: ubuntu-24.04
             compiler: gcc-12
@@ -311,3 +313,4 @@ jobs:
       uses: mxschmitt/action-tmate@v3
       # When debugging increase to a suitable value!
       timeout-minutes: 30
+