sorbet: Update RBI files and prune files.yaml.

Autogenerated by [a scheduled GitHub Action](https://github.com/Homebrew/brew/blob/master/.github/workflows/sorbet.yml).

Library/Homebrew/sorbet/rbi/gems/regexp_parser@1.8.0.rbi

@@ -1,6 +1,6 @@
 # DO NOT EDIT MANUALLY
 # This is an autogenerated file for types exported from the `regexp_parser` gem.
-# Please instead update this file by running `tapioca generate --exclude json`.
+# Please instead update this file by running `tapioca sync`.
 
 # typed: true
 
@@ -794,7 +794,7 @@ class Regexp::Expression::WhiteSpace < ::Regexp::Expression::FreeSpace
 end
 
 class Regexp::Lexer
-  def lex(input, syntax = T.unsafe(nil), &block); end
+  def lex(input, syntax = T.unsafe(nil), options: T.unsafe(nil), &block); end
 
   private
 
@@ -815,8 +815,8 @@ class Regexp::Lexer
   def tokens=(_); end
 
   class << self
-    def lex(input, syntax = T.unsafe(nil), &block); end
+    def lex(input, syntax = T.unsafe(nil), options: T.unsafe(nil), &block); end
-    def scan(input, syntax = T.unsafe(nil), &block); end
+    def scan(input, syntax = T.unsafe(nil), options: T.unsafe(nil), &block); end
   end
 end
 
@@ -865,7 +865,7 @@ class Regexp::Parser
   include(::Regexp::Syntax)
   include(::Regexp::Expression::UnicodeProperty)
 
-  def parse(input, syntax = T.unsafe(nil), &block); end
+  def parse(input, syntax = T.unsafe(nil), options: T.unsafe(nil), &block); end
 
   private
 
@@ -886,6 +886,7 @@ class Regexp::Parser
   def count_captured_group; end
   def decrease_nesting; end
   def escape(token); end
+  def extract_options(input, options); end
   def free_space(token); end
   def group(token); end
   def intersection(token); end
@@ -901,7 +902,6 @@ class Regexp::Parser
   def node=(_); end
   def open_group(token); end
   def open_set(token); end
-  def options_from_input(input); end
   def options_group(token); end
   def options_stack; end
   def options_stack=(_); end
@@ -921,7 +921,7 @@ class Regexp::Parser
   def update_transplanted_subtree(exp, new_parent); end
 
   class << self
-    def parse(input, syntax = T.unsafe(nil), &block); end
+    def parse(input, syntax = T.unsafe(nil), options: T.unsafe(nil), &block); end
   end
 end
 
@@ -944,7 +944,7 @@ Regexp::Parser::VERSION = T.let(T.unsafe(nil), String)
 
 class Regexp::Scanner
   def emit(type, token, text, ts, te); end
-  def scan(input_object, &block); end
+  def scan(input_object, options: T.unsafe(nil), &block); end
 
   private
 
@@ -959,6 +959,7 @@ class Regexp::Scanner
   def emit_options(text, ts, te); end
   def free_spacing; end
   def free_spacing=(_); end
+  def free_spacing?(input_object, options); end
   def group_depth; end
   def group_depth=(_); end
   def in_group?; end
@@ -976,7 +977,7 @@ class Regexp::Scanner
 
   class << self
     def long_prop_map; end
-    def scan(input_object, &block); end
+    def scan(input_object, options: T.unsafe(nil), &block); end
     def short_prop_map; end
   end
 end