build: update devdependency rollup to ~2.13.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
rollup (source)	devDependencies	minor	~2.12.0 -> ~2.13.0

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Release Notes

rollup/rollup

v2.13.1

Compare Source

2020-06-04

Bug Fixes

• Prevent conflicts in SystemJS when module is used as a top-level variable (#​3614)

Pull Requests

• #​3614: Handle system reserved identifier dedupes (@​guybedford)

v2.13.0

Compare Source

2020-06-03

Features

• Allow to specify that an emitted chunk is only loaded after a given module has loaded to improve chunking (#​3606)

Pull Requests

• #​3606: Enable specifying implicit dependencies when emitting chunks (@​lukastaegert)

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[codeclimate]

Code Climate has analyzed commit e1c148c 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 99.0% (0.0% change).

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