@actions/core: convert to ESM module

packages/core/__tests__/command.test.ts

@@ -1,4 +1,4 @@
-import * as command from '../src/command'
+import * as command from '../src/command.js'
 import * as os from 'os'
 
 /* eslint-disable @typescript-eslint/unbound-method */

packages/core/__tests__/core.test.ts

@@ -1,9 +1,9 @@
 import * as fs from 'fs'
 import * as os from 'os'
 import * as path from 'path'
-import * as core from '../src/core'
+import * as core from '../src/core.js'
 import {HttpClient} from '@actions/http-client'
-import {toCommandProperties} from '../src/utils'
+import {toCommandProperties} from '../src/utils.js'
 
 /* eslint-disable @typescript-eslint/unbound-method */
 

packages/core/__tests__/path-utils.test.ts

@@ -1,6 +1,6 @@
 import * as path from 'path'
 
-import {toPlatformPath, toPosixPath, toWin32Path} from '../src/path-utils'
+import {toPlatformPath, toPosixPath, toWin32Path} from '../src/path-utils.js'
 
 describe('#toPosixPath', () => {
   const cases: {

packages/core/__tests__/platform.test.ts

@@ -1,5 +1,5 @@
 import os from 'os'
-import {platform} from '../src/core'
+import {platform} from '../src/core.js'
 
 describe('getInfo', () => {
   it('returns the platform info', async () => {

packages/core/__tests__/summary.test.ts

@@ -1,7 +1,7 @@
 import * as fs from 'fs'
 import * as os from 'os'
 import path from 'path'
-import {summary, SUMMARY_ENV_VAR} from '../src/summary'
+import {summary, SUMMARY_ENV_VAR} from '../src/summary.js'
 
 const testDirectoryPath = path.join(__dirname, 'test')
 const testFilePath = path.join(testDirectoryPath, 'test-summary.md')