Update dependency open to v6.4.0 - autoclosed

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
open	dependencies	minor	6.3.0 -> 6.4.0

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Release Notes

sindresorhus/open

### [`v6.4.0`](https://togithub.com/sindresorhus/open/releases/v6.4.0) [Compare Source](https://togithub.com/sindresorhus/open/compare/v6.3.0...v6.4.0) - Add executable check for local xdg-open ([#​140](https://togithub.com/sindresorhus/open/issues/140)) [`78fcc9e`](https://togithub.com/sindresorhus/open/commit/78fcc9e)

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Renovate configuration

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