fix exec nightly error on mac (#28567)

paddle/scripts/paddle_build.sh

@@ -563,12 +563,12 @@ EOF
         if [ ${NIGHTLY_MODE:-OFF} == "ON" ]; then
             nightly_label=""
         else
-            nightly_label="RUN_TYPE=NIGHTLY|RUN_TYPE=DIST:NIGHTLY|RUN_TYPE=EXCLUSIVE:NIGHTLY"
+            nightly_label="(RUN_TYPE=NIGHTLY|RUN_TYPE=DIST:NIGHTLY|RUN_TYPE=EXCLUSIVE:NIGHTLY)"
             echo "========================================="
             echo "Unittests with nightly labels  are only run at night"
             echo "========================================="
         fi
-        ctest -E "($disable_ut_quickly)" -LE "($nightly_label)" --output-on-failure -j $2 | tee $tmpfile
+        ctest -E "($disable_ut_quickly)" -LE ${nightly_label} --output-on-failure -j $2 | tee $tmpfile
         failed_test_lists=''
         collect_failed_tests
         mactest_error=0