move sudo -k to formula_installer

sudo -k cannot be used inside sandbox

Closes Homebrew/homebrew#43345.

Signed-off-by: Xu Cheng <xucheng@me.com>

Library/Homebrew/build.rb

@@ -168,9 +168,6 @@ begin
   error_pipe = UNIXSocket.open(ENV["HOMEBREW_ERROR_PIPE"], &:recv_io)
   error_pipe.fcntl(Fcntl::F_SETFD, Fcntl::FD_CLOEXEC)
 
-  # Invalidate the current sudo timestamp in case a build script calls sudo
-  system "/usr/bin/sudo", "-k"
-
   trap("INT", old_trap)
 
   formula = ARGV.formulae.first

Library/Homebrew/formula_installer.rb

@@ -547,6 +547,9 @@ class FormulaInstaller
     end
 
     Utils.safe_fork do
+      # Invalidate the current sudo timestamp in case a build script calls sudo
+      system "/usr/bin/sudo", "-k"
+
       if Sandbox.available? && ARGV.sandbox? && !Sandbox.auto_disable?
         sandbox = Sandbox.new
         formula.logs.mkpath