Potential fix for code scanning alert no. 9: Use of insecure SSL/TLS version

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: TingDaoK

test/test_http_asyncio.py

@@ -74,6 +74,7 @@ def _start_server(self, secure, http_1_0=False):
         self.server = HTTPServer((self.hostname, 0), TestRequestHandler)
         if secure:
             context = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)
+            context.minimum_version = ssl.TLSVersion.TLSv1_2
             context.load_cert_chain(certfile='test/resources/unittest.crt', keyfile="test/resources/unittest.key")
             self.server.socket = context.wrap_socket(self.server.socket, server_side=True)
         self.port = self.server.server_address[1]