fix(tests): correct pg connection URL scheme and upgrade postgres service image

.github/workflows/ci.yml

@@ -24,11 +24,12 @@ jobs:
 
     services:
       postgres:
-        image: postgres:9.6-alpine
+        image: postgres:16-alpine
         env:
           POSTGRES_USER: postgrator
           POSTGRES_PASSWORD: postgrator
           POSTGRES_DB: postgrator
+          POSTGRES_HOST_AUTH_METHOD: md5
         ports:
           - 5432:5432
         options: >-

test/api.js

@@ -4,7 +4,7 @@ const Postgrator = require('../postgrator')
 
 const path = require('path')
 const migrationDirectory = path.join(__dirname, 'migrations')
-const pgUrl = 'tcp://postgrator:postgrator@localhost:5432/postgrator'
+const pgUrl = 'postgres://postgrator:postgrator@localhost:5432/postgrator'
 
 describe('API', function() {
   const postgrator = new Postgrator({

test/api.ts

@@ -3,7 +3,7 @@ import * as Postgrator from '../'
 
 import * as path from 'path'
 const migrationDirectory = path.join(__dirname, 'migrations')
-const pgUrl = 'tcp://postgrator:postgrator@localhost:5432/postgrator'
+const pgUrl = 'postgres://postgrator:postgrator@localhost:5432/postgrator'
 
 describe('TypeScript:API', function() {
   const postgrator = new Postgrator({

test/postgresConnectionUrl.js

@@ -4,7 +4,7 @@ const Postgrator = require('../postgrator')
 
 const path = require('path')
 const migrationDirectory = path.join(__dirname, 'migrations')
-const pgUrl = 'tcp://postgrator:postgrator@localhost:5432/postgrator'
+const pgUrl = 'postgres://postgrator:postgrator@localhost:5432/postgrator'
 
 describe('Postgres connection url', function() {
   const postgrator = new Postgrator({