Bumps [ffi](https://github.com/ffi/ffi) from 1.13.0 to 1.13.1.
- [Release notes](https://github.com/ffi/ffi/releases)
- [Changelog](https://github.com/ffi/ffi/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ffi/ffi/compare/1.13.0...1.13.1

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

docs/Maintainer-Guidelines: Document `brew mirror`

- I vaguely remembered that ImageMagick was a download we mirrored on
  BinTray and that doing so required some manual effort post-merge. I
  went looking for some docs to confirm that memory, but didn't find
  any.

audit: make audit_revision_and_version_scheme faster.

This is really, really slow at the moment for a few reasons:
- it goes through the list of revisions twice
- it checks many more revisions than it needs to

Even after these improvements it's still by far the slowest audit so
am also making it a `--git` only audit.

Additionally, to further improve default `brew audit` performance do not
run `brew style` checks when doing `brew audit` with no arguments.

`brew style` can be run quickly and efficiently on all of a tap (and is
cached) so no need to duplicate it here.

build(deps): bump rubocop from 0.85.0 to 0.85.1 in /Library/Homebrew

build(deps): bump regexp_parser from 1.7.0 to 1.7.1 in /Library/Homebrew

Bumps [regexp_parser](https://github.com/ammar/regexp_parser) from 1.7.0 to 1.7.1.
- [Release notes](https://github.com/ammar/regexp_parser/releases)
- [Changelog](https://github.com/ammar/regexp_parser/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ammar/regexp_parser/compare/v1.7.0...v1.7.1

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [rubocop](https://github.com/rubocop-hq/rubocop) from 0.85.0 to 0.85.1.
- [Release notes](https://github.com/rubocop-hq/rubocop/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop-hq/rubocop/compare/v0.85.0...v0.85.1

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Use "allowlist" and "denylist" instead of "whitelist" and "blacklist"

- Depending on context, I've gone for either "denylist" or "disallow"
  here. "Disallow" for things in sentences, or actions, and "denylist"
  for list of things.

Cask: rename appcast configuration to must_contain

Cask: use regex in appcast adjusted_version_stanza

build(deps): bump i18n from 1.8.2 to 1.8.3 in /Library/Homebrew

on_os_blocks: add audit

Bumps [i18n](https://github.com/svenfuchs/i18n) from 1.8.2 to 1.8.3.
- [Release notes](https://github.com/svenfuchs/i18n/releases)
- [Changelog](https://github.com/ruby-i18n/i18n/blob/master/CHANGELOG.md)
- [Commits](https://github.com/svenfuchs/i18n/compare/v1.8.2...v1.8.3

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

formula: deprecate devel blocks.

dev-cmd/pull: deprecate.

Merge pull request #7697 from Homebrew/dependabot/bundler/Library/Homebrew/rubocop-performance-1.6.1

build(deps): bump rubocop-performance from 1.6.0 to 1.6.1 in /Library/Homebrew

As we haven't released 2.3.1 I think we can get away with sneaking this
in. I'm also prepared to back this out if it's too widely used and
there's too much backlash.

We no longer use this and `hub checkout` does what we want better.

formula_installer: Fix `.installed?` method deprecation

ENV: SDK can be nil

Bumps [rubocop-performance](https://github.com/rubocop-hq/rubocop-performance) from 1.6.0 to 1.6.1.
- [Release notes](https://github.com/rubocop-hq/rubocop-performance/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop-performance/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop-hq/rubocop-performance/compare/v1.6.0...v1.6.1

)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

- Trying to test out a user-submitted `brew bump-formula-pr` for
  `app-engine-java` gave an error locally that [hasn't shown up on
  CI](https://github.com/Homebrew/homebrew-core/pull/55798/checks?check_run_id=740165542),
  oddly.

```
➜ brew install app-engine-java -s && brew test app-engine-java
Error: Calling Formula#installed? is deprecated! Use Formula#latest_version_installed? (or Formula#any_version_installed? ) instead.
/usr/local/Homebrew/Library/Homebrew/compat/formula.rb:6:in `installed?'
/usr/local/Homebrew/Library/Homebrew/formula_installer.rb:421:in `block (2 levels) in check_requirements'
/usr/local/Homebrew/Library/Homebrew/formula_installer.rb:420:in `each'
/usr/local/Homebrew/Library/Homebrew/formula_installer.rb:420:in `block in check_requirements'
/usr/local/Homebrew/Library/Homebrew/formula_installer.rb:419:in `each_pair'
/usr/local/Homebrew/Library/Homebrew/formula_installer.rb:419:in `check_requirements'
/usr/local/Homebrew/Library/Homebrew/formula_installer.rb:392:in `compute_dependencies'
/usr/local/Homebrew/Library/Homebrew/formula_installer.rb:149:in `verify_deps_exist'
/usr/local/Homebrew/Library/Homebrew/formula_installer.rb:143:in `prelude'
/usr/local/Homebrew/Library/Homebrew/cmd/install.rb:328:in `install_formula'
/usr/local/Homebrew/Library/Homebrew/cmd/install.rb:261:in `block in install'
/usr/local/Homebrew/Library/Homebrew/cmd/install.rb:259:in `each'
/usr/local/Homebrew/Library/Homebrew/cmd/install.rb:259:in `install'
/usr/local/Homebrew/Library/Homebrew/brew.rb:110:in `<main>'
```

Fix audit online release variable

dev-cmd/audit: don't check GitHub releases without --online.

Readme: tweak wording

Use Gem to install gems instead of invoking system

This both is more accurate and making `brew audit` without `--online` a
bit faster.

os/mac/keg_relocate: add missing `libexec` method