Update rollup to the latest version 🚀

[greenkeeper]

Version 0.45.1 of rollup just got published.

Dependency	rollup
Current Version	0.44.0
Type	devDependency

The version 0.45.1 is not covered by your current version range.

Without accepting this pull request your project will work just like it did before. There might be a bunch of new features, fixes and perf improvements that the maintainers worked on for you though.

I recommend you look into these changes and try to get onto the latest version of rollup.
Given that you have a decent test suite, a passing build is a strong indicator that you can take advantage of these changes by merging the proposed change into your project. Otherwise this branch is a great starting point for you to work on the update.

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Commits

The new version differs by 10 commits.

• 87c4733 -> v0.45.1
• 5e4cbdc Merge pull request #1489 from rollup/gh-1483
• e099d8c remove weak from optionalDependencies
• abab199 -> v0.45.0
• 328a8fa throw helpful error if code or map are accessed from bundle.generate promise
• 1be3478 Merge branch 'gh-1474' of https://github.com/caccialdo/rollup into gh-1474
• a76b35e Add tests for async bundle transformers
• 4980d71 Lint fixes
• 73bc503 Fix tests to support async transformBundle
• 05fb800 Support for async transformBundle

See the full diff

Not sure how things should work exactly?

There is a collection of frequently asked questions and of course you may always ask my humans.

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Your Greenkeeper Bot 🌴