Fix typo in appveyor

appveyor.yml

@@ -32,13 +32,13 @@ test_script:
       npm run test:integration
 
 deploy_script:
-  - sh |
+  - sh: |
       CURR_VER=$(npm view package.json version)
       if curl -s -X GET -H "token: $deploytoken" https://git.nfp.is/api/v1/repos/$APPVEYOR_REPO_NAME/releases | grep -o "\"name\"\:\"v${CURR_VER}\"" > /dev/null; then
         echo "Release already exists, nothing to do.";
       else
         ./test/7zas a -mx9 "${CURR_VER}_sc-core.7z" package.json index.mjs cli.mjs core bin
-        
+        npm publish
       fi