Update dependency eslint-loader to v3

This MR contains the following updates:

Package	Type	Update	Change	References
eslint-loader	devDependencies	major	2.2.1 -> 3.0.2	source

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Release Notes

webpack-contrib/eslint-loader

v3.0.2

Compare Source

v3.0.1

Compare Source

v3.0.0

Compare Source

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