Remove debug, fix weird error dropping

src/main.ts

@@ -7,7 +7,6 @@ import { contextFromEnvironment, generateVersion } from './version'
  * @returns {Promise<void>} Resolves when the action is complete.
  */
 export async function run(): Promise<void> {
-  console.log('XXX', process.env.GITHUB_REF)
   try {
     const packageJsonPath = 'package.json'
     const packageJson = JSON.parse(
@@ -29,6 +28,6 @@ export async function run(): Promise<void> {
       )
     }
   } catch (error) {
-    if (error instanceof Error) core.setFailed(error.message)
+    core.setFailed(error instanceof Error ? error.message : 'Unknown error')
   }
 }