chore(deps): update common docker tag to v2.30.2 (#57)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [common](https://redirect.github.com/bitnami/charts)
([source](https://redirect.github.com/bitnami/charts/tree/HEAD/bitnami/common))
| patch | `2.30.0` -> `2.30.2` |

---

### Release Notes

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

###
[`v2.30.2`](https://redirect.github.com/bitnami/charts/blob/HEAD/bitnami/common/CHANGELOG.md#2302-2025-04-30)

- \[bitnami/common] add namespaces to extraPodAffinityTerms for
affinities
([#&#8203;33173](https://redirect.github.com/bitnami/charts/pull/33173))

###
[`v2.30.1`](https://redirect.github.com/bitnami/charts/blob/HEAD/bitnami/common/CHANGELOG.md#2301-2025-04-28)

- \[bitnami/common] Allows tpl in provided passwords
"common.secrets.passwords.manage"
([#&#8203;33196](https://redirect.github.com/bitnami/charts/pull/33196))

</details>

---

### Configuration

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

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR is behind base branch, 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/jeboehm/mailserver-charts).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOS4yNjQuMCIsInVwZGF0ZWRJblZlciI6IjM5LjI2NC4wIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6W119-->

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

Author: renovate[bot]

charts/docker-mailserver/Chart.yaml

@@ -28,7 +28,7 @@ dependencies:
   repository: oci://registry-1.docker.io/bitnamicharts
   condition: mariadb.enabled
 - name: common
-  version: 2.30.0
+  version: 2.30.2
   repository: oci://registry-1.docker.io/bitnamicharts
 annotations:
   category: Mail