brew_installer: fix use of force flag

Fixes passing `brew bundle --force` to:
- make formula installation run `brew install <formula> --force --overwrite`
- run 'brew link --overwrite <formula>' to force relinking of an unlinked non-keg by default (i.e. link: nil)

lib/bundle/brew_installer.rb

@@ -12,8 +12,8 @@ def self.preinstall(name, no_upgrade: false, verbose: false, **options)
       new(name, options).preinstall(no_upgrade:, verbose:)
     end
 
-    def self.install(name, preinstall: true, no_upgrade: false, verbose: false, **options)
-      new(name, options).install(preinstall:, no_upgrade:, verbose:)
+    def self.install(name, preinstall: true, no_upgrade: false, verbose: false, force: false, **options)
+      new(name, options).install(preinstall:, no_upgrade:, verbose:, force:)
     end
 
     def initialize(name, options = {})
@@ -112,7 +112,7 @@ def link_change_state!(verbose: false, force: false)
       when nil
         if unlinked_and_not_keg_only?
           puts "Linking #{@name} formula." if verbose
-          link_args = "link"
+          link_args = ["link"]
           link_args << "--overwrite" if force
           Bundle.system(HOMEBREW_BREW_FILE, *link_args, @name, verbose:)
         elsif linked_and_keg_only?