Always echo matrix output

Author: tangrufus

action.yml

@@ -154,6 +154,13 @@ runs:
 
         echo ""
         echo "::group::==> Matrix Output"
+
+        stopMarker=$(uuidgen)
+        echo "::stop-commands::$stopMarker"
+
         cat matrix
+
+        echo "::$stopMarker::"
+
         echo "::endgroup::"
       shell: bash