Homebrew

<!-- Release notes generated using configuration in .github/release.yml at master -->

What's Changed

• linkage_checker: report linkage with system frameworks by @carlocab in https://github.com/Homebrew/brew/pull/13570
• Added support for running services fully backgrounded on macOS by @GottemHams in https://github.com/Homebrew/brew/pull/13510
• Require deprecate_disable module in formulary by @gpanders in https://github.com/Homebrew/brew/pull/13578
• Ignore empty patch blocks by @Rylan12 in https://github.com/Homebrew/brew/pull/13576
• Add flags to superenv when building with glibc@2.13 by @danielnachun in https://github.com/Homebrew/brew/pull/13568
• Remove reference to Travis bot by @p-linnane in https://github.com/Homebrew/brew/pull/13579
• Additional fixes for glibc@2.13 by @danielnachun in https://github.com/Homebrew/brew/pull/13588
• use --time-cond when caching the formula api json by @steveh7812 in https://github.com/Homebrew/brew/pull/13584

New Contributors

• @GottemHams made their first contribution in https://github.com/Homebrew/brew/pull/13510
• @gpanders made their first contribution in https://github.com/Homebrew/brew/pull/13578
• @p-linnane made their first contribution in https://github.com/Homebrew/brew/pull/13579

Full Changelog: https://github.com/Homebrew/brew/compare/3.5.5...3.5.6