Bump seneca from 1.4.0 to 3.9.0

Bumps [seneca](https://github.com/senecajs/seneca) from 1.4.0 to 3.9.0.
- [Release notes](https://github.com/senecajs/seneca/releases)
- [Changelog](https://github.com/senecajs/seneca/blob/master/CHANGES.md)
- [Commits](senecajs/seneca@v1.4.0...v3.9.0)

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

Author: dependabot[bot]

package.json

@@ -50,7 +50,7 @@
     "pg": "5.1.0",
     "postgrator": "2.8.1",
     "sanitize-html": "1.14.1",
-    "seneca": "1.4.0",
+    "seneca": "3.9.0",
     "seneca-kue": "git://github.com/wardormeur/seneca-kue.git",
     "seneca-newrelic": "wardormeur/seneca-newrelic",
     "seneca-postgresql-store": "2.3",