actually use md5 not sha256

packages/artifact/__tests__/util.test.ts

@@ -234,6 +234,6 @@ describe('Utils', () => {
     const digest = await utils.digestForStream(stream)
 
     expect(digest.crc64).toBe('bSzITYnW/P8=')
-    expect(digest.md5).toBe('Xiv1fT9AxLbfadrxk2y3ZvgyN0tPwCWafL/wbi9w8mk=')
+    expect(digest.md5).toBe('gKdR/eV3AoZAxBkADjPrpg==')
   })
 })

packages/artifact/src/internal/utils.ts

@@ -309,7 +309,7 @@ export async function digestForStream(
 ): Promise<StreamDigest> {
   return new Promise((resolve, reject) => {
     const crc64 = new CRC64()
-    const md5 = crypto.createHash('sha256')
+    const md5 = crypto.createHash('md5')
     stream
       .on('data', data => {
         crc64.update(data)