Bump python from 3.13.3-alpine to 3.13.4-alpine in /docs/docker (#1559)

Bumps python from 3.13.3-alpine to 3.13.4-alpine.

---
updated-dependencies:
- dependency-name: python
  dependency-version: 3.13.4-alpine
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docs/docker/Dockerfile.local

@@ -1,4 +1,4 @@
-FROM python:3.13.3-alpine AS builder
+FROM python:3.13.4-alpine AS builder
 
 SHELL ["/bin/sh", "-o", "pipefail", "-c"]
 
@@ -31,7 +31,7 @@ RUN --mount=type=cache,target=${POETRY_CACHE_DIR},uid=${OWASP_UID},gid=${OWASP_G
     poetry install --no-root && \
     rm -rf docs/poetry.lock docs/pyproject.toml
 
-FROM python:3.13.3-alpine
+FROM python:3.13.4-alpine
 
 SHELL ["/bin/sh", "-o", "pipefail", "-c"]