brew pull: add automatic tap repair

At the moment, every time I pull a new formulae from a tap, I have to
fetch it with the fully qualified name, `brew fetch
homebrew/versions/duck123 `, which is fine, but then I also have to
install, test, and audit it in the same way, which isn’t fixed until I
tap repair, which gets a bit onerous.

This just adds a step to `brew pull` where it does the tap repair
automatically for taps.

Closes Homebrew/homebrew#37788.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Library/Homebrew/cmd/pull.rb

@@ -187,6 +187,8 @@ module Homebrew
       ohai 'Patch changed:'
       safe_system "git", "diff-tree", "-r", "--stat", revision, "HEAD"
 
+      safe_system "brew", "tap", "--repair" if tap_name
+
       if ARGV.include? '--install'
         changed_formulae.each do |f|
           ohai "Installing #{f.name}"