[test] use TLS that isn't disabled on Java

Author: kares

src/test/ruby/ssl/test_session.rb

@@ -7,7 +7,7 @@ class TestSSLSession < TestCase
   def test_session
     start_server0(PORT, OpenSSL::SSL::VERIFY_NONE, true) do |server, port|
       sock = TCPSocket.new("127.0.0.1", port)
-      ctx = OpenSSL::SSL::SSLContext.new("TLSv1")
+      ctx = OpenSSL::SSL::SSLContext.new("TLSv1_2")
       ssl = OpenSSL::SSL::SSLSocket.new(sock, ctx)
       ssl.sync_close = true
       ssl.connect