chore(deps): Update dependency bootswatch to v3.4.0

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
bootswatch (source)	minor	3.3.7 -> 3.4.0

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Release Notes

thomaspark/bootswatch (bootswatch)

### [`v3.4.0`](https://togithub.com/thomaspark/bootswatch/compare/v3.3.7...v3.4.0) [Compare Source](https://togithub.com/thomaspark/bootswatch/compare/v3.3.7...v3.4.0)

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