chore(deps): update dependency babel-preset-react-app to v7

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
babel-preset-react-app	dependencies	major	^3.1.1 -> ^7.0.0	source, changelog

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Release Notes

facebook/create-react-app

v7.0.2

Compare Source

v7.0.1

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v7.0.0

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v6.1.0

Compare Source

v5.0.4

v5.0.3

Compare Source

v5.0.2

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v5.0.1

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v4.0.0

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[renovate]

⚠️ Lock file problem

Renovate failed to update a lock file. You probably do not want to merge this PR as-is.

♻️ Renovate will retry this branch, including lockfile, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The lock file failure details are included below:

yarn.lock

internal/modules/cjs/loader.js:583
    throw err;
    ^

Error: Cannot find module '/usr/src/node_modules/renovate/bin/yarn-1.9.4.js'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:581:15)
    at Function.Module._load (internal/modules/cjs/loader.js:507:25)
    at Function.Module.runMain (internal/modules/cjs/loader.js:742:12)
    at startup (internal/bootstrap/node.js:283:19)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:743:3)