chore(deps): update redis docker tag to v20.8.0 (#47)

This PR contains the following updates:

| Package | Type | Update | Change | OpenSSF |
|---|---|---|---|---|
| [redis](https://redirect.github.com/bitnami/charts)
([source](https://redirect.github.com/bitnami/charts/tree/HEAD/bitnami/redis))
| helm_release | minor | `20.7.1` -> `20.8.0` | [![OpenSSF
Scorecard](https://api.securityscorecards.dev/projects/github.com/bitnami/charts/badge)](https://securityscorecards.dev/viewer/?uri=github.com/bitnami/charts)
|

---

### Release Notes

<details>
<summary>bitnami/charts (redis)</summary>

###
[`v20.8.0`](https://redirect.github.com/bitnami/charts/blob/HEAD/bitnami/redis/CHANGELOG.md#2080-2025-02-20)

- \[bitnami/redis] feat: add parameter to disable checksums
([#&#8203;31948](https://redirect.github.com/bitnami/charts/pull/31948))

</details>

---

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01_infrastructure/redis.tf

@@ -7,7 +7,7 @@ resource "helm_release" "redis" {
   name       = "redis"
   repository = "oci://registry-1.docker.io/bitnamicharts"
   chart      = "redis"
-  version    = "20.7.1"
+  version    = "20.8.0"
   namespace  = var.dependencies_namespace
 
   create_namespace = true