build: update devdependency rollup to ~2.22.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
rollup (source)	devDependencies	minor	~2.21.0 -> ~2.22.0

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Release Notes

rollup/rollup

v2.22.1

Compare Source

2020-07-18

Bug Fixes

• Remove unused arguments when calling a conditional expression (#​3680)

Pull Requests

• #​3680: Allow tree-shaking of arguments of functions that are returned by conditional expressions (@​lukastaegert)

v2.22.0

Compare Source

2020-07-18

Features

• Allow resolving snythetic named exports via an arbitrary export name (#​3657)
• Display a warning when the user does not explicitly select an export mode and would generate a chunk with default export mode when targeting CommonJS (#​3657)

Pull Requests

• #​3657: Add basic support for using a non-default export for syntheticNamedExports (@​lukastaegert)
• #​3659: Warn when implicitly using default export mode (@​lukastaegert)

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Code Climate has analyzed commit 45c3c29 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (95% is the threshold).

This pull request will bring the total coverage in the repository to 100.0% (0.0% change).

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