[ci] Update the CI to follow other repositories in running valgrind

.github/workflows/ci.yml

@@ -724,13 +724,10 @@ jobs:
         if [[ "${{ matrix.os }}" == macos-* ]]; then
         echo "Skipping Valgrind checks on macOS"
         else
-            if [[ "${{ matrix.clang-runtime }}" == "17" || "${{ matrix.clang-runtime }}" == "18" ]]; then
-                echo "Valgrind reports true for clang-runtime 17 or 18, due to memory leaks with LLVM"
-                valgrind --error-exitcode=1 --suppressions=../etc/valgrind-cppyy-cling.supp python -m pytest -m "not xfail" -v || true
-            else
-                echo "Running valgrind on passing tests"
-                valgrind --error-exitcode=1 --suppressions=../etc/valgrind-cppyy-cling.supp python -m pytest -m "not xfail" -v
-            fi
+            echo "Running valgrind on passing tests"
+            CLANG_VERSION="${{ matrix.clang-runtime }}"
+            SUPPRESSION_FILE="../etc/clang${CLANG_VERSION}-valgrind.supp"
+            valgrind --show-error-list=yes --error-exitcode=1 --track-origins=yes --suppressions="${SUPPRESSION_FILE}" --suppressions=../etc/valgrind-cppyy-cling.supp python -m pytest -m "not xfail" -v
         fi
         export RETCODE=+$?
         echo ::endgroup::