Fix exec line

Author: Baccata

dist/setup/index.js

@@ -83,7 +83,7 @@ async function run(): Promise<void> {
       core.setOutput('ucm-version', ucmVersion)
     })
     // Enabling auto-migration in Unison
-    await cli.exec('UNISON_MIGRATION="auto" >> $GITHUB_ENV')
+    await cli.exec('echo UNISON_MIGRATION="auto" >> $GITHUB_ENV')
   } finally { }
 }