MAINT: Update ghcr.io/astral-sh/uv Docker tag to v0.9.18

Author: zon-renovate

Dockerfile

@@ -1,7 +1,7 @@
 FROM python:3.14.2-slim@sha256:10f5458f950e21b5ebe9ef12f75d8b9fc6adef232b0f0fc782ef71be59c2b871 AS base
 LABEL org.opencontainers.image.name=europe-west3-docker.pkg.dev/zeitonline-engineering/docker-zon/httpbin
 
-COPY --from=ghcr.io/astral-sh/uv:0.9.17@sha256:5cb6b54d2bc3fe2eb9a8483db958a0b9eebf9edff68adedb369df8e7b98711a2 /uv /usr/bin/
+COPY --from=ghcr.io/astral-sh/uv:0.9.18@sha256:5713fa8217f92b80223bc83aac7db36ec80a84437dbc0d04bbc659cae030d8c9 /uv /usr/bin/
 ENV UV_NO_MANAGED_PYTHON=1 \
     UV_NO_CACHE=1 \
     UV_COMPILE_BYTECODE=1 \