fix: fix mapping ipv6-based port mappings

src/index.ts

@@ -1,6 +1,6 @@
 import childProcess from 'child_process'
 import yaml from 'yaml'
-import mapPorts from './port-mapper'
+import mapPorts from './map-ports'
 
 export interface IDockerComposeOptions {
   cwd?: string

test/map-ports.test.ts

@@ -1,4 +1,4 @@
-import mapPorts from '../src/port-mapper'
+import mapPorts from '../src/map-ports'
 
 test('map ports for empty string', () => {
   expect(mapPorts('')).toEqual([])