Improve how acorn is imported, update dependencies

[lukastaegert]

This PR contains:

• bugfix
• feature
• refactor
• documentation
• other

Are tests included?

• yes (bugfixes and features will not be merged without tests)
• no

Breaking Changes?

• yes (breaking changes will not be merged unless absolutely necessary)
• no

List any relevant issue numbers:
Closes #2628

Description

Since acorn unfortunately needs to be external now, there is an issue that only shows when rollup itself is bundled by another ESM aware bundler in that

• rollup-plugin-commonjs will translate require('acorn') to a default import
• the other bundler will attempt to use the ESM version of acorn that has no default export

This is only an issue with the two bundled acorn plugins for dynamic import and import.meta. The solution is to manually import the (more efficient!) ESM version of the dynamic import plugin and translate the remaining import manually in the renderChunk hook. This is not elegant but an error will be thrown if the expected import changes.

Also, some dependencies are updated.

[tchetwin]

Amazing @lukastaegert, thanks for the deep dive on this. ESM/require interop is fiendish!

I pulled this branch and verified locally that a Webpack workaround is not needed.

We have this part of our code base earmarked for some TLC so it will hopefully receive the ESM/TS treatment and we will once again feel enlightened 😃