Update dependency favicons-webpack-plugin to v6

This MR contains the following updates:

Package	Type	Update	Change
favicons-webpack-plugin	devDependencies	major	^5.0.2 -> ^6.0.0

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Release Notes

jantimon/favicons-webpack-plugin

v6.0.1

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• update dependencies to their latest versions

v6.0.0

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• update dependencies to their latest versions (#​342)

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mentioned in issue #15

changed the description

changed the description