Update babel monorepo to v7.7.4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
@babel/core (source)	devDependencies	patch	7.7.2 -> 7.7.4
@babel/plugin-proposal-class-properties	devDependencies	patch	7.7.0 -> 7.7.4
@babel/plugin-syntax-dynamic-import	devDependencies	minor	7.2.0 -> 7.7.4
@babel/preset-env (source)	devDependencies	patch	7.7.1 -> 7.7.4
@babel/preset-react (source)	devDependencies	patch	7.7.0 -> 7.7.4
@babel/preset-typescript	devDependencies	patch	7.7.2 -> 7.7.4

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Release Notes

babel/babel

v7.7.4

Compare Source

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[coveralls]

Pull Request Test Coverage Report for Build 2460

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 2458:	0.0%
Covered Lines:	107
Relevant Lines:	107

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💛 - Coveralls