Bumps [ffi](https://github.com/ffi/ffi) from 1.11.1 to 1.11.2.
- [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/1.11.1...1.11.2

)

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

upgrade: fix handling broken dependents.

Ensure that we use the keg for checking linkage but that the dependents
returned are still formulae.

Fixes #6715.

'upradable' typo for 'upgradeable_dependents'

formula_installer: copy hidden files into bottles.

Allow `JAVA_HOME` in formulae depending on `openjdk`.

test: re-enable portable Ruby tests.

utils#system: improve verbose output.

cleanup: rescue more cask errors.

Let's try to get these working again.

This previously output the hilarious long and unnecessary LOAD_PATH.

This will avoid a wider degree of failures.

Fix some tests

formula: refactor outdated_kegs logic.

upgrade: tweak dependent messaging.

- Use the `Formula.cache` and `Cacheable` rather than rolling our own.
- Use keyword arguments instead of `options = {}`
- Improve readability in general

deps: refactor weird OpenStruct usage.

Output more without requiring `--verbose` and update the messages to
make clear what we're looking for and what we found/didn't find.

This is a little more noisy but it should help explain any delays to
users and make it more obvious what's failed if something does.

build: bump activesupport from 5.2.3 to 6.0.1 in /Library/Homebrew

Improve upgrade dependents check performance, reliability and readability

Dockerfile: make the prefix group writable

build: bump tins from 1.21.1 to 1.22.0 in /Library/Homebrew

Bumps [activesupport](https://github.com/rails/rails) from 5.2.3 to 6.0.1.
- [Release notes](https://github.com/rails/rails/releases)
- [Changelog](https://github.com/rails/rails/blob/v6.0.1/activesupport/CHANGELOG.md)
- [Commits](https://github.com/rails/rails/compare/v5.2.3...v6.0.1

)

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

cmd/upgrade: comment-out broken_dependents functionality.