Update xt0rted/slash-command-action action to v2

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
xt0rted/slash-command-action	action	major	v1 -> v2

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Release Notes

xt0rted/slash-command-action

### [`v2`](https://togithub.com/xt0rted/slash-command-action/compare/v1...v2) [Compare Source](https://togithub.com/xt0rted/slash-command-action/compare/v1...v2)

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