deprecate unnecessary extension config functions

[kellymears]

Agreement

• This is not a duplicate of an existing issue
• I have read the guidelines for Contributing to Roots Projects
• This is not a personal support request that should be posted on the Roots Discourse community

The feature

#2078 adds a nice interface for managing extension options that makes lots of different extension functions obsolete.

Use case

This will greatly increase test coverage and should reduce support requests.

Notes

• compile list of functions
• add @deprecated tag to function in bud@6
• remove function calls
• update tests

Deprecate

• bud.babel.getEnv
• bud.babel.setEnv
• bud.typescript.useBabel 🔧 improve(@roots/bud-typescript): general improvements #2084
• bud.vue.runtimeOnly 🔧 improve(@roots/bud-typescript): general improvements #2084
• bud.gzip 🔧 improve(@roots/bud-compress): general improvements #2092
• bud.brotli 🔧 improve(@roots/bud-compress): general improvements #2092
• bud.eslint.fix ✨ improve(@roots/bud-eslint): deprecate bud.eslint.fix #2099
• bud.postcss.syntax ✨ improve(multiple): improve extensions #2100
• bud.postcss.sourceMap ✨ improve(multiple): improve extensions #2100
• bud.stylelint.failOnError 🔧 clean: remove typedoc @public @internal @decorator #2162
• bud.stylelint.failOnWarning 🔧 clean: remove typedoc @public @internal @decorator #2162
• bud.tailwind.generateImports ✨ improve(multiple): improve extensions #2100