Increment version to 2.19.0.0

Signed-off-by: opensearch-ci-bot <[email protected]>

Author: opensearch-ci-bot

package.json

@@ -33,4 +33,4 @@
     "tough-cookie": "^4.1.3",
     "@cypress/request": "^3.0.0"
   }
-}
+}