Update ghcr.io/goauthentik/server Docker tag to v2024.6.4

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
ghcr.io/goauthentik/server (source)	patch	2024.6.3 -> 2024.6.4

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Release Notes

goauthentik/authentik (ghcr.io/goauthentik/server)

### [`v2024.6.4`](https://togithub.com/goauthentik/authentik/releases/tag/version/2024.6.4): Release 2024.6.4 See https://docs.goauthentik.io/docs/releases/2024.6#fixed-in-202464 #### What's Changed - web/admin: fix selectable card colour in dark theme (cherry-pick [#​10794](https://togithub.com/goauthentik/authentik/issues/10794)) by [@​gcp-cherry-pick-bot](https://togithub.com/gcp-cherry-pick-bot) in [https://github.com/goauthentik/authentik/pull/10795](https://togithub.com/goauthentik/authentik/pull/10795) - sources/ldap: Add enabled filter for ldap_password_validate signal (cherry-pick [#​10823](https://togithub.com/goauthentik/authentik/issues/10823)) by [@​gcp-cherry-pick-bot](https://togithub.com/gcp-cherry-pick-bot) in [https://github.com/goauthentik/authentik/pull/10825](https://togithub.com/goauthentik/authentik/pull/10825) - security: fix CVE-2024-42490 (cherry-pick [#​11022](https://togithub.com/goauthentik/authentik/issues/11022)) by [@​gcp-cherry-pick-bot](https://togithub.com/gcp-cherry-pick-bot) in [https://github.com/goauthentik/authentik/pull/11025](https://togithub.com/goauthentik/authentik/pull/11025) **Full Changelog**: https://github.com/goauthentik/authentik/compare/version/2024.6.3...version/2024.6.4

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