Added matrix test timings

.gitea/workflows/Merge-Checker.yaml

@@ -38,11 +38,9 @@ jobs:
         run: |
           if [ -x build/unit-tests/matrix-timing-tests ]; then
             echo "Running matrix-timing-tests with timing"
-            # Run the test executable and capture timing info
-            # Assuming the executable prints timings per test internally
-            # If not, you might want to wrap each subtest with 'time' or
-            # run the entire executable with time:
-            /usr/bin/time -v build/unit-tests/matrix-timing-tests
+            # Enable Catch2 timing output via command-line flag -d yes
+            # Wrap with /usr/bin/time for overall runtime measurement and resource usage
+            /usr/bin/time -v build/unit-tests/matrix-timing-tests -d yes
           else
             echo "matrix-timing-tests executable not found or not executable"
-          fi
+          fi