remove --skip-auth flag

Author: Saadnajmi

.github/workflows/microsoft-npm-publish-dry-run.yml

@@ -31,7 +31,7 @@ jobs:
         run: yarn
       - name: Verify release config
         run: |
-          node .ado/scripts/prepublish-check.mjs --verbose --skip-auth --tag ${{ env.PUBLISH_TAG }}
+          node .ado/scripts/prepublish-check.mjs --verbose --tag ${{ env.PUBLISH_TAG }}
 
       - name: Version and publish packages (dry run)
         run: |