Skip build dependencies to avoid downloading bottles

Dependency.to_formula() in the following line will cause a
CoreTapFormulaUnavailableError then download all dependency bottles in FormulaInstaller.verfi_deps_exist()

Library/Homebrew/dependency.rb

@@ -112,6 +112,8 @@ def expand(dependent, deps = dependent.deps, cache_key: nil, ignore_missing: fal
 
       deps.each do |dep|
         next if dependent.name == dep.name
+        # avoid downloading build dependency bottles
+        next if dep.build? && dependent.pour_bottle? && Homebrew::EnvConfig.install_from_api?
 
         case action(dependent, dep, ignore_missing: ignore_missing, &block)
         when :prune