[windows, post request] error: password authentication failed for user

Hi,

Post request doesn't work on my local machine (it seems, trying to auth with windows user), but works fine with travis-ci. Get requests work fine. If I send post request manually - it works fine.

Test:
```javascript
import server from '~/app'
import request from 'supertest'

describe('Order creation', () => {
test('Create order', async () => {
const response = await request(server)
.post('/api/v1/orders/')
.send({
kit: 'M',
deliveryMethod: 'pickup',
address: '433111, Russia, Moscow, 5-1-34',
name: 'Ivan',
phone: '+7 (916) 123-34-54'
})
.set('Content-type', 'application/json')
.expect('Content-Type', /json/)
.expect(200)

expect(Object.keys(response.body)).toContain('orderId')
})
})

afterEach(() => {
server.close()
})
```

Error:
```console
FAIL source/api/v1/orders/createOrder.test.js (5.602s)
● Console

console.log node_modules/koa-logger/index.js:52
<-- POST /api/v1/orders/
console.log node_modules/koa-logger/index.js:52
xxx POST /api/v1/orders/ 500 141ms -
console.error node_modules/koa/lib/application.js:189
undefined
console.error node_modules/koa/lib/application.js:190
error: password authentication failed for user "[WINDOWS_USERNAME]"
at Connection.Object..Connection.parseE (C:\projects\bee-ble\bee-
ble-app-backend\node_modules\pg\lib\connection.js:601:11)
at Connection.Object..Connection.parseMessage (C:\projects\bee-bl
e\bee-ble-app-backend\node_modules\pg\lib\connection.js:398:19)
at Socket. (C:\projects\bee-ble\bee-ble-app-backend\node_modules\
pg\lib\connection.js:120:22)
at Socket.emit (events.js:203:13)
at addChunk (_stream_readable.js:295:12)
at readableAddChunk (_stream_readable.js:276:11)
at Socket.Readable.push (_stream_readable.js:210:10)
at TCP.onStreamRead (internal/stream_base_commons.js:166:17)
console.error node_modules/koa/lib/application.js:191
undefined

● Order creations › Create order should add records to tables orders and accounts

expected 200 "OK", got 500 "Internal Server Error"

at Test.Object..Test._assertFunction (node_modules/supertest/lib/test.j
s:283:11)
at Test.Object..Test.assert (node_modules/supertest/lib/test.js:173:18)
at localAssert (node_modules/supertest/lib/test.js:131:12)
at node_modules/supertest/lib/test.js:128:5
at Test.Object..Request.callback (node_modules/superagent/lib/node/inde
x.js:728:3)
at IncomingMessage. (node_modules/superagent/lib/node/index.js:916:18)
```