[ruby/uri] Use DEFAULT_PARSER at split, parse, join

https://github.com/ruby/uri/commit/28af4e155a

lib/uri/common.rb

@@ -181,7 +181,7 @@ module URI
   #    ["fragment", "top"]]
   #
   def self.split(uri)
-    RFC3986_PARSER.split(uri)
+    DEFAULT_PARSER.split(uri)
   end
 
   # Returns a new \URI object constructed from the given string +uri+:
@@ -195,7 +195,7 @@ module URI
   # if it may contain invalid URI characters.
   #
   def self.parse(uri)
-    RFC3986_PARSER.parse(uri)
+    DEFAULT_PARSER.parse(uri)
   end
 
   # Merges the given URI strings +str+
@@ -222,7 +222,7 @@ module URI
   #   # => #<URI::HTTP http://example.com/foo/bar>
   #
   def self.join(*str)
-    RFC3986_PARSER.join(*str)
+    DEFAULT_PARSER.join(*str)
   end
 
   #