Ruby 3.0.2 md5 removal POC

test.log

ruby -v: ruby 3.0.2p107 (2021-07-07 revision 0db68f0233) [x86_64-linux]
/builddir/build/BUILD/ruby-3.0.2/test/net/http/test_https.rb:13:in `<class:TestNetHTTPS>': uninitialized constant TestNetHTTPS::T>
        from /builddir/build/BUILD/ruby-3.0.2/test/net/http/test_https.rb:12:in `<top (required)>'
        from <internal:/builddir/build/BUILD/ruby-3.0.2/lib/rubygems/core_ext/kernel_require.rb>:85:in `require'
        from /builddir/build/BUILD/ruby-3.0.2/tool/lib/test/unit.rb:1049:in `block in non_options'
        from /builddir/build/BUILD/ruby-3.0.2/tool/lib/test/unit.rb:1043:in `each'
        from /builddir/build/BUILD/ruby-3.0.2/tool/lib/test/unit.rb:1043:in `non_options'
        from /builddir/build/BUILD/ruby-3.0.2/tool/lib/test/unit.rb:65:in `process_args'
        from /builddir/build/BUILD/ruby-3.0.2/tool/lib/test/unit.rb:143:in `process_args'
        from /builddir/build/BUILD/ruby-3.0.2/tool/lib/test/unit.rb:1237:in `process_args'
        from /builddir/build/BUILD/ruby-3.0.2/tool/lib/test/unit.rb:1242:in `run'
        from /builddir/build/BUILD/ruby-3.0.2/tool/lib/test/unit.rb:1249:in `run'
        from /builddir/build/BUILD/ruby-3.0.2/tool/test/runner.rb:23:in `<top (required)>'
        from ./test/runner.rb:11:in `require_relative'
        from ./test/runner.rb:11:in `<main>'
/builddir/build/BUILD/ruby-3.0.2/test/net/http/test_buffered_io.rb: cannot load such file -- digest/md5