🚑 fix(patch): instantiate nested extensions

[kellymears]

This PR fixes a potentially critical issue and should be released on an immediate basis as 5.8.2.

Overview

Fixes an error in 5.8 which can cause nested extensions to not be instantiated.

I experienced this behavior when using @roots/bud-sass and @roots/bud-tailwindcss together.

Critical changes:

• Adds conditional recursive call to bud.extensions.import to instantiate missing extensions regardless of how the extension was added.
• Adds an integration test for @roots/bud-sass and @roots/bud-tailwindcss being used together.

Secondary:

• Introduces change to app.project that omits env variables from project.json reportage.

Changes

• 🚑 fix(patch): instantiate nested extensions
• 🐛 fix(none): extensions review
• 🐛 fix(none): core review
• 🧪 test(none): add sass-tailwindcss integration test
• 🧪 test(none): unit tests
• 🛼 improve(patch): omit env variables from project.json reporting
• 📦 deps(none): yarn.lock

refers: none
closes: none

Type of change

• PATCH: Backwards compatible bug fix

This PR includes breaking changes to the following core packages:

• none

This PR includes breaking changes to the follow extensions:

• none

Dependencies

Adds

• none

Removes

• none