- ensure that cases where `:build` and `:test` both apply to a
  dependency that we handle it appropriately
- fix reintroduced regression
  (https://github.com/Homebrew/brew/pull/6471#issuecomment-533414923).
  Fixes #6470.

Only prune test dependencies from the tree when they aren't also build
dependencies (and vice-versa with build dependencies) and the include
test argument hasn't been passed.

Fixes #7597.

Bumps [activesupport](https://github.com/rails/rails) from 6.0.3 to 6.0.3.1.
- [Release notes](https://github.com/rails/rails/releases)
- [Changelog](https://github.com/rails/rails/blob/v6.0.3.1/activesupport/CHANGELOG.md)
- [Commits](https://github.com/rails/rails/compare/v6.0.3...v6.0.3.1

)

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

This should improve the output in analytics.

Check we have a non-empty `options` and convert them all to human
readable strings.

Bumps [minitest](https://github.com/seattlerb/minitest) from 5.14.0 to 5.14.1.
- [Release notes](https://github.com/seattlerb/minitest/releases)
- [Changelog](https://github.com/seattlerb/minitest/blob/master/History.rdoc)
- [Commits](https://github.com/seattlerb/minitest/commits

)

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

This inappropriately modified the shared `patches` variable, meaning an
already fetched patch would be removed and therefore not be applied when
the resource was staged.

Bumps [tins](https://github.com/flori/tins) from 1.24.1 to 1.25.0.
- [Release notes](https://github.com/flori/tins/releases)
- [Commits](https://github.com/flori/tins/compare/v1.24.1...v1.25.0

)

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

The new `fetch_patches` method wasn't exclusively fetching so shouldn't
have been skipped when it was.

Fixes #7558.

Bumps [mime-types-data](https://github.com/mime-types/mime-types-data) from 3.2020.0425 to 3.2020.0512.
- [Release notes](https://github.com/mime-types/mime-types-data/releases)
- [Changelog](https://github.com/mime-types/mime-types-data/blob/master/History.md)
- [Commits](https://github.com/mime-types/mime-types-data/compare/v3.2020.0425...v3.2020.0512

)

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

Also:
- when `brew test` or `brew postinstall` is run allow `Resource#stage`
  to fetch the resource.
- make `Formula#fetch` and `Resource#fetch` fetch external patches too.

Follow-up from #7549 and #7546.

Whenever you are fetching a dependency you only care about fetching that
specific dependency and not all the dependencies of that dependency.

Unlike installing, dependencies can be fetched in any order and have no
"chains" between them.

If it's not present then `ErrorDuringExecution` and `BuildError` don't
work correctly so better to fall back to a default `RuntimeError`.

This crashes `brew style`.

Bumps [rubocop](https://github.com/rubocop-hq/rubocop) from 0.82.0 to 0.83.0.
- [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/v0.82.0...v0.83.0

)

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

Fixes #7546.

Co-authored-by: Mike McQuaid <mike@mikemcquaid.com>

Co-authored-by: Mike McQuaid <mike@mikemcquaid.com>

This uses `FormulaInstaller#fetch` to recursively fetch dependencies
through the dependency tree and allows `install_dependency` to not
do any fetching.

Fixes #6374.

Bumps [rspec-expectations](https://github.com/rspec/rspec-expectations) from 3.9.1 to 3.9.2.
- [Release notes](https://github.com/rspec/rspec-expectations/releases)
- [Changelog](https://github.com/rspec/rspec-expectations/blob/master/Changelog.md)
- [Commits](https://github.com/rspec/rspec-expectations/compare/v3.9.1...v3.9.2

)

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