RDBC-964 Fix SSLError in https test

Author: yh-0

ravendb/tests/jvm_migrated_tests/https_tests/test_https.py

@@ -1,5 +1,6 @@
 import base64
 import io
+import os
 import tempfile
 import unittest
 from typing import Tuple
@@ -174,6 +175,7 @@ def test_can_use_server_generated_certificate(self):
                 tmp = tempfile.mkstemp()
                 with open(tmp[1], "wb") as file:
                     file.write(key[0].encode("utf-8"))
+                    file.write(os.linesep.encode("utf-8"))
                     file.write(key[1])
                 store_with_out_cert.certificate_pem_path = tmp[1]
                 store_with_out_cert.initialize()