fix(deps): update dependency knex to v0.21.19

Author: renovate-bot

templates/fullstack/server/package.json

@@ -21,7 +21,7 @@
     "graphql": "15.5.0",
     "graphql-config": "3.2.0",
     "graphql-tag": "2.11.0",
-    "knex": "0.21.18",
+    "knex": "0.21.19",
     "pg": "8.5.1",
     "ts-node": "9.1.1",
     "ts-node-dev": "1.1.6",