feat(deps): lock file maintenance (#9)

This PR contains the following updates:

| Update | Change |
|---|---|
| lockFileMaintenance | All locks refreshed |

🔧 This Pull Request updates lock files to use the latest dependency versions.

---

### Configuration

📅 **Schedule**: Branch creation - "before 4am on monday" (UTC), 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.

👻 **Immortal**: This PR will be recreated if closed unmerged. Get [config help](https://github.com/renovatebot/renovate/discussions) if that's undesired.

---

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

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0Mi43MS4wIiwidXBkYXRlZEluVmVyIjoiNDIuNzEuMCIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOlsidHlwZS9kZXBlbmRlbmNpZXMiXX0=-->

Reviewed-on: #9
Co-authored-by: renovate[bot] <renovate-bot@git.tainton.uk>
Co-committed-by: renovate[bot] <renovate-bot@git.tainton.uk>

Dockerfile

@@ -1,18 +1,23 @@
-FROM python:3.14-slim
+FROM python:3.14.2-slim
 LABEL maintainer="Luke Tainton <luke@tainton.uk>"
-LABEL org.opencontainers.image.source="https://github.com/luketainton/6to4_converter"
 USER root
 
 ENV PYTHONPATH="/run:/usr/local/lib/python3.14/lib-dynload:/usr/local/lib/python3.14/site-packages:/usr/local/lib/python3.14"
+ENV UV_PROJECT_ENVIRONMENT="/usr/local/"
+
 WORKDIR /run
 
 RUN mkdir -p /.local && \
     chmod -R 777 /.local && \
-    pip install -U pip
+    pip install -U pip uv==0.9.21
 
-COPY requirements.txt /run/requirements.txt
-RUN pip install --no-cache-dir -r requirements.txt
+COPY pyproject.toml /run/pyproject.toml
+COPY uv.lock /run/uv.lock
+# needed for PDM build
+COPY README.md /run/README.md
 
-ENTRYPOINT ["python3", "-B", "-m", "app.main"]
+RUN uv sync --frozen
+
+ENTRYPOINT ["uv", "run", "python", "-B", "-m", "app.main"]
 
 COPY app /run/app

uv.lock

@@ -4,7 +4,7 @@ requires-python = ">=3.14"
 
 [[package]]
 name = "6to4-converter"
-version = "0.1.0"
+version = "0.0.0"
 source = { virtual = "." }
 dependencies = [
     { name = "argparse" },