formula_auditor: repo should never be nil, so use T.must

#18004 (comment)

Library/Homebrew/formula_auditor.rb

@@ -776,28 +776,24 @@ def audit_specs
  problem "#{stable.version} is a development release"
 
  when %r{https?://gitlab\.com/([\w-]+)/([\w-]+)}
- owner = Regexp.last_match(1)
- repo = Regexp.last_match(2)
+ owner = T.must(T.must(Regexp.last_match(1)))
+ repo = T.must(T.must(Regexp.last_match(2)))
 
  tag = SharedAudits.gitlab_tag_from_url(url)
  tag ||= stable.specs[:tag]
  tag ||= stable.version
 
  if @online
- return if owner.nil? || repo.nil?
-
  error = SharedAudits.gitlab_release(owner, repo, tag, formula:)
  problem error if error
  end
  when %r{^https://github.com/([\w-]+)/([\w-]+)}
- owner = Regexp.last_match(1)
- repo = Regexp.last_match(2)
+ owner = T.must(Regexp.last_match(1))
+ repo = T.must(Regexp.last_match(2))
  tag = SharedAudits.github_tag_from_url(url)
  tag ||= formula.stable.specs[:tag]
 
  if @online
- return if owner.nil? || repo.nil?
-
  error = SharedAudits.github_release(owner, repo, tag, formula:)
  problem error if error
  end