test/openssl/test_config: skip tests for .include on older OpenSSL

The .include directive was initially added by OpenSSL 1.1.1, but the
syntax was later modified in 1.1.1b to improve compatibility with the
parser in <= 1.1.0. The test case expects 1.1.1b's parser.

openssl/openssl@95f59d3

The test case is failing on Ubuntu 18.04 because it still uses the
initial 1.1.1 release:

http://rubyci.s3.amazonaws.com/graviton2/ruby-master/log/20210316T120003Z.fail.html.gz
(cherry picked from commit ruby/ruby@e61e9bc)

Author: rhenium

test/openssl/test_config.rb

@@ -121,6 +121,11 @@ def test_s_parse_format
   end
 
   def test_s_parse_include
+    if !openssl?(1, 1, 1, 2)
+      # OpenSSL < 1.1.1 parses .include directive as a normal assignment
+      pend ".include directive is not supported"
+    end
+
     in_tmpdir("ossl-config-include-test") do |dir|
       Dir.mkdir("child")
       File.write("child/a.conf", <<~__EOC__)
@@ -150,10 +155,6 @@ def test_s_parse_include
 
       # Include a file by relative path
       c1 = OpenSSL::Config.parse(include_file)
-      if c1["sec-main"][".include"]
-        # OpenSSL < 1.1.1 parses '.include =' as a normal assignment
-        pend ".include directive is not supported"
-      end
       assert_equal(["default", "sec-a", "sec-b", "sec-main"], c1.sections.sort)
       assert_equal(["file-a", "file-b", "file-main"], c1["default"].keys.sort)
       assert_equal({"a" => "123"}, c1["sec-a"])