RUBY-32905 Handle stable releases with negative patch number correctly

There was an assumption that patch level can be negative only for rc/preview ruby versions. But that is not generally true. It doesn't work with ruby 3.4.0 which is stable and has patch version -1. For such case it breaks mechanism of guessing right dir with core sources.

Instead of looking for negative patch version in core sources generation process, we need to check ruby version for `-rc`/`-preview` suffix. If ruby version doesn't have such prefix we need to add patch version (even negative) to the name of the dir with core sources for this version. In that way mechanism of guessing dirs works fine.

Author: Dmitry Pogrebnoy

Rakefile

@@ -23,7 +23,9 @@ def get_dest_dir(ruby_dir, version, tempdir)
     puts "extracted patchlevel '#{patchlevel}'"
   end
   if patchlevel
-    dest_dir = dest_dir + "-p" + patchlevel unless patchlevel == '-1'
+    if !version.include?('-rc') && !version.include?("-preview")
+      dest_dir = dest_dir + "-p" + patchlevel
+    end
   else
     warn "Unable to extract patchlevel from verion.h assuming there is no patchlevel please use a $PATCHLEVEL to specify one"
   end

lib/debase/ruby_core_source.rb

@@ -68,7 +68,7 @@ def self.deduce_packaged_source_dir(ruby_dir)
     end
 
     def self.ruby_source_dir_version(dir)
-      match = /ruby-([0-9\.]+)-((p|rc|preview)[0-9]+)\z/.match(dir)
+      match = /ruby-([0-9\.]+)-((p|rc|preview)-?[0-9]+)\z/.match(dir)
       Gem::Version.new("#{match[1]}.#{match[2]}")
     end