Test syntax_suggest with GHA

[hsbt]

No description provided.

[schneems]

I'm getting a failure now when trying to run the sync command:

$ git pull --rebase https://github.com/ruby/ruby master
From https://github.com/ruby/ruby
 * branch                  master     -> FETCH_HEAD
Already up to date.
⛄️ 3.1.2 🚀 /Users/rschneeman/Documents/projects/ruby (schneems/building-ruby-docs)
$ ls ../ | grep syntax
syntax_suggest
⛄️ 3.1.2 🚀 /Users/rschneeman/Documents/projects/ruby (schneems/building-ruby-docs)
$ tool/sync_default_gems.rb syntax_suggest
Sync ruby/syntax_suggest
/Users/rschneeman/.rubies/ruby-3.1.2/lib/ruby/3.1.0/fileutils.rb:484:in `realpath': No such file or directory @ rb_check_realpath_internal - ../../ruby/syntax_suggest/spec (Errno::ENOENT)
	from /Users/rschneeman/.rubies/ruby-3.1.2/lib/ruby/3.1.0/fileutils.rb:484:in `copy_entry'
	from /Users/rschneeman/.rubies/ruby-3.1.2/lib/ruby/3.1.0/fileutils.rb:461:in `block in cp_r'
	from /Users/rschneeman/.rubies/ruby-3.1.2/lib/ruby/3.1.0/fileutils.rb:1577:in `block in fu_each_src_dest'
	from /Users/rschneeman/.rubies/ruby-3.1.2/lib/ruby/3.1.0/fileutils.rb:1593:in `fu_each_src_dest0'
	from /Users/rschneeman/.rubies/ruby-3.1.2/lib/ruby/3.1.0/fileutils.rb:1575:in `fu_each_src_dest'
	from /Users/rschneeman/.rubies/ruby-3.1.2/lib/ruby/3.1.0/fileutils.rb:460:in `cp_r'
	from tool/sync_default_gems.rb:379:in `sync_default_gems'
	from tool/sync_default_gems.rb:656:in `<main>'

I'm not entirely sure what's the expected outcome of that file manipulation so I'm not able to send a patch. I also tried running the make test command directly, but I'm getting an openssl error (my problem that I need to figure out).

[hsbt]

@schneems Thanks for your trying. It's strange behavior because I couldn't repro that.