[DRE-maint] Bug#1035307: Update ruby-ruby-parser to 3.20.x

[Pirate Praveen]

On Sun, 30 Apr 2023 20:35:00 +0530 Praveen Arimbrathodiyil 
<praveen at onenetbeyond.org> wrote:
 > Package: ruby-ruby-parser
 > Version: 3.19.2-1
 > Severity: important
 >
 > Gitlab 15.11.0 needs ruby-ruby-parser 3.20 and while trying to update
 > it, the build fails with
 >
 >   13) Failure:
 > TestRubyParserV32#test_unless_pre_not__18
 > [/usr/lib/ruby/vendor_ruby/pt_testcase.rb:159]:
 > failed on input: "unless not b then a end".
 > --- expected
 > +++ actual
 > @@ -1 +1,4 @@
 > -s(:if, s(:call, nil, :b), s(:call, nil, :a), nil)
 > +s(:if,
 > + s(:call, s(:call, nil, :b).line(1), :!).line(1),
 > + nil,
 > + s(:call, nil, :a).line(1)).line(1)
 >
 >
 >   14) Failure:
 > TestRubyParserV32#test_str_question_literal__18
 > [/usr/lib/ruby/vendor_ruby/pt_testcase.rb:159]:
 > failed on input: "?a".
 > --- expected
 > +++ actual
 > @@ -1 +1 @@
 > -s(:lit, 97)
 > +s(:str, "a").line(1)
 >
 >
 >   15) Failure:
 > TestRubyParserV32#test_while_pre_not__18
 > [/usr/lib/ruby/vendor_ruby/pt_testcase.rb:159]:
 > failed on input: "while not true do\n  (1 + 1)\nend".
 > --- expected
 > +++ actual
 > @@ -1 +1,4 @@
 > -s(:until, s(:true), s(:call, s(:lit, 1), :+, s(:lit, 1)), true)
 > +s(:while,
 > + s(:call, s(:true).line(1), :!).line(1),
 > + s(:call, s(:lit, 1).line(2), :+, s(:lit, 1).line(2)).line(2),
 > + true).line(1)
 >
 >
 >   16) Failure:
 > TestRubyParserV32#test_unless_post_not__18
 > [/usr/lib/ruby/vendor_ruby/pt_testcase.rb:159]:
 > failed on input: "a unless not b".
 > --- expected
 > +++ actual
 > @@ -1 +1,4 @@
 > -s(:if, s(:call, nil, :b), s(:call, nil, :a), nil)
 > +s(:if,
 > + s(:call, s(:call, nil, :b).line(1), :!).line(1),
 > + nil,
 > + s(:call, nil, :a).line(1)).line(1)
 >
 >

Running the tests like upstream would with ruby 3.1 installed via rvm, 
the same errors are reproduced.

https://github.com/seattlerb/ruby_parser/issues/337#issuecomment-1535023385