[ci] set bot repo via env var

.circleci/update/maybe_pr

@@ -47,14 +47,14 @@ if [ $? -ne 0 ]; then
     exit 2
 fi
 fork_url="https://${UPD_BOT_LOGIN}:${UPD_BOT_GIT_TK}"
-fork_url+="@github.com/${UPD_BOT_LOGIN}/${PUBLISH}.git"
+fork_url+="@github.com/${UPD_BOT_LOGIN}/${UPD_BOT_REPO}.git"
 git remote set-url "${UPD_BOT_LOGIN}" "${fork_url}"
 
 echo_headline "Pushing changes"
 hub push -f "${UPD_BOT_LOGIN}" "${CIRCLE_BRANCH}" > /dev/null 2>&1
 #                                     prevent token leak ^^^^^^^^^^^^^^
 if [ $? -ne 0 ]; then
-    echo "hub push to \"${UPD_BOT_LOGIN}\" failed"
+    echo "hub push failed"
     exit 2
 fi