fix: sklp branch creation for “Host key verification failed” install error

lib/workers/branch/lock-files.js

@@ -428,6 +428,11 @@ async function getUpdatedLockFiles(config) {
           }
         }
       }
+      // istanbul ignore if
+      if (res.stderr && res.stderr.includes('Host key verification failed')) {
+        logger.info({ stderr: res.stderr }, 'Host key verification failed');
+        throw new Error('internal-error');
+      }
       lockFileErrors.push({
         lockFile: lockFileName,
         stderr: res.stderr,