Update dependency babel-loader to v8 - autoclosed

[mend-for-github-com[bot]]

This PR contains the following updates:

Package	Type	Update	Change
babel-loader	devDependencies	major	^7.1.1 -> ^8.0.0

By merging this PR, the below vulnerabilities will be automatically resolved:

	Severity	CVSS Score	CVE
	Medium	5.6	CVE-2020-7598

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Release Notes

babel/babel-loader

### [`v8.0.0`](https://togithub.com/babel/babel-loader/releases/v8.0.0) [Compare Source](https://togithub.com/babel/babel-loader/compare/v7.1.5...v8.0.0) This is the first stable release of `babel-loader` for Babel 7.x. - README updates - Dropped peer dependency on betas and RCs, but left the backward-compat code we had for now to give people time to migrate

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