chore(deps): update helm release argo-cd to v7.6.4 (#565)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [argo-cd](https://redirect.github.com/argoproj/argo-helm) | patch |
`7.6.3` -> `7.6.4` |

---

### Release Notes

<details>
<summary>argoproj/argo-helm (argo-cd)</summary>

###
[`v7.6.4`](https://redirect.github.com/argoproj/argo-helm/releases/tag/argo-cd-7.6.4)

[Compare
Source](https://redirect.github.com/argoproj/argo-helm/compare/argo-cd-7.6.3...argo-cd-7.6.4)

A Helm chart for Argo CD, a declarative, GitOps continuous delivery tool
for Kubernetes.

#### What's Changed

- chore(deps): update actions/checkout action to v4.2.0 by
[@&#8203;argoproj-renovate](https://redirect.github.com/argoproj-renovate)
in
[https://github.com/argoproj/argo-helm/pull/2937](https://redirect.github.com/argoproj/argo-helm/pull/2937)
- fix(argo-cd): Align imagePullSecrets for redis-secret-init Job by
[@&#8203;DoumLaberge](https://redirect.github.com/DoumLaberge) in
[https://github.com/argoproj/argo-helm/pull/2928](https://redirect.github.com/argoproj/argo-helm/pull/2928)

#### New Contributors

- [@&#8203;DoumLaberge](https://redirect.github.com/DoumLaberge) made
their first contribution in
[https://github.com/argoproj/argo-helm/pull/2928](https://redirect.github.com/argoproj/argo-helm/pull/2928)

**Full Changelog**:
argoproj/argo-helm@argo-cd-7.6.3...argo-cd-7.6.4

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
log](https://developer.mend.io/github/broersma-forslund/homelab).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOC44MC4wIiwidXBkYXRlZEluVmVyIjoiMzguODAuMCIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOltdfQ==-->

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

apps/cluster/argocd/Chart.yaml

@@ -4,5 +4,5 @@ version: 1.0.0
 
 dependencies:
   - name: argo-cd
-    version: 7.6.3
+    version: 7.6.4
     repository: https://argoproj.github.io/argo-helm