build: update rollup to version 1.24.0

[renovate-bot]

This PR contains the following updates:

Package	Type	Update	Change
rollup	dependencies	minor	1.23.1 -> 1.24.0

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Release Notes

rollup/rollup

v1.24.0

Compare Source

2019-10-15

Features

• Respect break, continue, return and throw when tree-shaking to detect dead code (#​3153)
• Do treat treat hoisted function declarations as "unknown" when checking for call side-effects (#​3153)

Bug Fixes

• Make sure that unknown import.meta properties produce valid code in SystemJS (#​3152)
• Make sure treeshake.annotations: false is respected for class instantiation (#​3153)
• Check property access side-effects for class instantiation (#​3153)
• Do not suppress break statements inside labeled statements (#​3153)

Pull Requests

• #​3152: Allow import.meta.* for systemjs format (@​dmail)
• #​3153: Get rid of immutable.js and implement tree-shaking for broken control flow (@​lukastaegert)

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