chore(deps): update knex requirement from ^0.16.3 to ^0.18.1

Updates the requirements on [knex](https://github.com/tgriesser/knex) to permit the latest version.
- [Release notes](https://github.com/tgriesser/knex/releases)
- [Changelog](https://github.com/tgriesser/knex/blob/master/CHANGELOG.md)
- [Commits](https://github.com/tgriesser/knex/commits)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -39,7 +39,7 @@
     "@adonisjs/generic-exceptions": "^2.0.1",
     "chance": "^1.0.18",
     "debug": "^4.1.1",
-    "knex": "^0.16.3",
+    "knex": "^0.18.1",
     "lodash": "^4.17.11",
     "moment": "^2.24.0",
     "pluralize": "^7.0.0",