Fix boost get ci rule (#24656)

tools/check_api_approvals.sh

@@ -157,7 +157,7 @@ if [ ${HAS_CONST_CAST} ] && [ "${GIT_PR_ID}" != "" ]; then
 fi
 
 HAS_BOOST_GET=`git diff -U0 upstream/$BRANCH |grep "^+" |grep -o -m 1 "boost::get" || true`
-if [ ${HAS_CONST_CAST} ] && [ "${GIT_PR_ID}" != "" ]; then
+if [ ${HAS_BOOST_GET} ] && [ "${GIT_PR_ID}" != "" ]; then
     echo_line="boost::get is not recommended, because it may throw an bad_get exception without any stack information, so please use BOOST_GET(_**)(dtype, value) series macros here. If these macros cannot meet your needs, please use try-catch to handle boost::get and specify chenwhql (Recommend), luotao1 or lanxianghit review and approve.\n"
     check_approval 1 6836917 47554610 22561442
 fi