feat(charts): update helm release memcached to v7.4.0

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
memcached (source)	minor	7.3.0 -> 7.4.0

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Release Notes

bitnami/charts (memcached)

### [`v7.4.0`](https://togithub.com/bitnami/charts/blob/HEAD/bitnami/memcached/CHANGELOG.md#740-2024-05-21) - \[bitnami/memcached] feat: :sparkles: :lock: Add warning when original images are replaced ([#​26241](https://togithub.com/bitnami/charts/pulls/26241))

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