Fix CI for Node.js 10 and Node.js 12:

[dhmlau]

See comment:
#383 (comment) (failed on Node.js 10)
#385 (failed on Node.js 12)

1) autoupdate
     foreign key constraint
       should create, update, and delete foreign keys:
   error: duplicate key value violates unique constraint "pg_namespace_nspname_index" (while running initial autoupdate)
    at Connection.parseE (node_modules/pg/lib/connection.js:602:11)
    at Connection.parseMessage (node_modules/pg/lib/connection.js:399:19)
    at Socket.<anonymous> (node_modules/pg/lib/connection.js:121:22)
    at addChunk (_stream_readable.js:288:12)
    at readableAddChunk (_stream_readable.js:269:11)
    at Socket.Readable.push (_stream_readable.js:224:10)
    at TCP.onStreamRead [as onread] (internal/stream_base_commons.js:94:17)

Acceptance Criteria

• fix the CI failure

[jannyHou]

probably caused by the broken jsdoc, CI is green for PR #385 now.

[jannyHou]

Closing after #385 landed.