chore(deps): update python:3.14-slim docker digest to caaf356 (#49)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [python](https://hub.docker.com/_/python)
([source](https://redirect.github.com/docker-library/python)) | final |
digest | `cea0e60` → `caaf356` |
| [python](https://hub.docker.com/_/python)
([source](https://redirect.github.com/docker-library/python)) | stage |
digest | `cea0e60` → `caaf356` |

---

### Configuration

📅 **Schedule**: (in timezone America/Chicago)

- Branch creation
  - "before 6am on sunday"
- Automerge
  - At any time (no schedule defined)

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

♻ **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 these
updates 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/baker-scripts/RedditModLog).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0NC4xMi4wIiwidXBkYXRlZEluVmVyIjoiNDQuMTAzLjAiLCJ0YXJnZXRCcmFuY2giOiJtYWluIiwibGFiZWxzIjpbImRlcGVuZGVuY2llcyIsInJlbm92YXRlIl19-->

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

Author: renovate[bot]

Dockerfile

@@ -1,5 +1,5 @@
 # Build stage
-FROM python:3.14-slim@sha256:cea0e6040540fb2b965b6e7fb5ffa00871e632eef63719f0ea54bca189ce14a6 AS builder
+FROM python:3.14-slim@sha256:caaf356f40667c496d405780745b9ac25771c189a51dfcc42430d531ea09f8a2 AS builder
 
 # Install build dependencies
 RUN apt-get update && apt-get install -y --no-install-recommends \
@@ -15,7 +15,7 @@ COPY requirements.txt /tmp/
 RUN pip install --no-cache-dir -r /tmp/requirements.txt
 
 # Runtime stage
-FROM python:3.14-slim@sha256:cea0e6040540fb2b965b6e7fb5ffa00871e632eef63719f0ea54bca189ce14a6
+FROM python:3.14-slim@sha256:caaf356f40667c496d405780745b9ac25771c189a51dfcc42430d531ea09f8a2
 
 # OCI Labels
 LABEL org.opencontainers.image.title="Reddit ModLog Wiki Publisher" \