chore(package): Update 8 devDependencies to latest

[uirouterbot]

chore(package): Update 8 devDependencies to latest

autoprefixer@^9.8.6: 9.8.6 -> 10.3.0
copy-webpack-plugin@^5.1.1: 5.1.1 -> 9.0.1
css-loader@^3.6.0: 3.6.0 -> 5.2.6
postcss-load-config@^2.1.2: 2.1.2 -> 3.1.0
postcss-loader@^3.0.0: 3.0.0 -> 6.1.1
style-loader@^1.3.0: 1.3.0 -> 3.0.0
webpack@^4.46.0: 4.46.0 -> 5.44.0
webpack-cli@^3.3.12: 3.3.12 -> 4.7.2

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