fix pkg_add

.github/workflows/DNS.yml

@@ -332,7 +332,7 @@ jobs:
       with:
         envs: 'TEST_DNS TestingDomain TEST_DNS_NO_WILDCARD TEST_DNS_NO_SUBDOMAIN TEST_DNS_SLEEP CASE TEST_LOCAL DEBUG http_proxy https_proxy TokenName1 TokenName2 TokenName3 TokenName4 TokenName5 ${{ secrets.TokenName1}} ${{ secrets.TokenName2}} ${{ secrets.TokenName3}} ${{ secrets.TokenName4}} ${{ secrets.TokenName5}}'
         prepare: |
-          pkg_add curl socat
+          /usr/sbin/pkg_add curl socat
         usesh: true
         copyback: false
         run: |