fix(deps): update module github.com/go-redsync/redsync/v4 to v4.9.4

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
github.com/go-redsync/redsync/v4	require	minor	v4.8.1 -> v4.9.4

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Release Notes

go-redsync/redsync (github.com/go-redsync/redsync/v4)

### [`v4.9.4`](https://togithub.com/go-redsync/redsync/compare/v4.9.3...v4.9.4) [Compare Source](https://togithub.com/go-redsync/redsync/compare/v4.9.3...v4.9.4) ### [`v4.9.3`](https://togithub.com/go-redsync/redsync/compare/v4.9.2...v4.9.3) [Compare Source](https://togithub.com/go-redsync/redsync/compare/v4.9.2...v4.9.3) ### [`v4.9.2`](https://togithub.com/go-redsync/redsync/compare/v4.9.1...v4.9.2) [Compare Source](https://togithub.com/go-redsync/redsync/compare/v4.9.1...v4.9.2) ### [`v4.9.1`](https://togithub.com/go-redsync/redsync/compare/v4.9.0...v4.9.1) [Compare Source](https://togithub.com/go-redsync/redsync/compare/v4.9.0...v4.9.1) ### [`v4.9.0`](https://togithub.com/go-redsync/redsync/compare/v4.8.2...v4.9.0) [Compare Source](https://togithub.com/go-redsync/redsync/compare/v4.8.2...v4.9.0) ### [`v4.8.2`](https://togithub.com/go-redsync/redsync/compare/v4.8.1...v4.8.2) [Compare Source](https://togithub.com/go-redsync/redsync/compare/v4.8.1...v4.8.2)

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