restoreCache only cleanup in finally if archivePath is set

packages/cache/src/cache.ts

@@ -142,6 +142,7 @@ export async function restoreCache(
       core.warning(`Failed to restore: ${(error as Error).message}`)
     }
   } finally {
+    if (archivePath) {
       // Try to delete the archive to save space
       try {
         await utils.unlinkFile(archivePath)
@@ -149,6 +150,7 @@ export async function restoreCache(
         core.debug(`Failed to delete archive: ${error}`)
       }
     }
+  }
 
   return undefined
 }