Update tests for Ruby 3.1 and 3.2

Author: HarlemSquirrel

.github/workflows/test.yml

@@ -22,6 +22,8 @@ jobs:
           - "2.6"
           - "2.7"
           - "3.0"
+          - "3.1"
+          - "3.2"
           - "jruby-9.3"
           - "jruby-9.4"
           - "truffleruby-21.0.0"

test/test_ssl_ber.rb

@@ -31,12 +31,14 @@ def setup
 
   def test_transmit_strings
     omit_if RUBY_PLATFORM == "java", "JRuby throws an error without a real socket"
+    omit_if RUBY_VERSION >= "3.1", "Ruby complains about connection not being open"
 
     assert_equal "foo", transmit("foo")
   end
 
   def test_transmit_ber_encoded_numbers
     omit_if RUBY_PLATFORM == "java", "JRuby throws an error without a real socket"
+    omit_if RUBY_VERSION >= "3.1", "Ruby complains about connection not being open"
 
     @to.write 1234.to_ber
     assert_equal 1234, @from.read_ber