chore(container): update python:3.13-alpine docker digest to af1fd7a (#38397)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| python | final | digest | `f196fd2` -> `af1fd7a` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Configuration

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

🚦 **Automerge**: Enabled.

♻ **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 has been generated by [Renovate
Bot](https://redirect.github.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0MS41My4xIiwidXBkYXRlZEluVmVyIjoiNDEuNTMuMSIsInRhcmdldEJyYW5jaCI6Im1hc3RlciIsImxhYmVscyI6WyJhdXRvbWVyZ2UiLCJyZW5vdmF0ZS9jb250YWluZXIiLCJ0eXBlL2RpZ2VzdCJdfQ==-->

containers/apps/bfics/Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.13-alpine@sha256:f196fd275fdad7287ccb4b0a85c2e402bb8c794d205cf6158909041c1ee9f38d
+FROM python:3.13-alpine@sha256:af1fd7a973d8adc761ee6b9d362b99329b39eb096ea3c53b8838f99bd187011e
 
 # Install dependencies
 RUN pip install --no-cache-dir requests beautifulsoup4 icalendar pytz