refactor: set encoding type as pkcs1 for node-ssh connect function

src/user.ts

@@ -107,11 +107,11 @@ export default class User {
         } = await generateKeyPairSync('rsa', {
           modulusLength: 4096,
           publicKeyEncoding: {
-            type: 'spki',
+            type: 'pkcs1',
             format: 'pem',
           },
           privateKeyEncoding: {
-            type: 'pkcs8',
+            type: 'pkcs1',
             format: 'pem',
           },
         });