Whoopsie doopsie actually run the tests instead of echoing

Author: harakka

build-scripts/gha_test_only.sh

@@ -60,9 +60,7 @@ else
     MODLIST=${MODS#--mods=}
     then
         for MODSET in ${MODLIST//|/ }; do
-            echo "$num_test_jobs" ${parallel_opts} \
-                "run_test './tests/cata_test' 'Mods-('{}')=> ' --mods=$(printf %q "${MODSET}") --user-dir=modded_{#} {}" \
-                ::: "[slow] ~starting_items" "~[slow] ~[.],starting_items"
+            parallel -j "$num_test_jobs" ${parallel_opts} "run_test './tests/cata_test' 'Mods-('{}')=> ' --mods=$(printf %q "${MODSET}") --user-dir=modded_{#} {}" ::: "[slow] ~starting_items" "~[slow] ~[.],starting_items"
         done
     fi