build: include hashes in req.txt

Dockerfile

@@ -11,7 +11,7 @@ COPY requirements-poetry.txt ./
 RUN --mount=type=cache,target=/root/.cache/pip,sharing=locked pip install -r requirements-poetry.txt
 
 COPY pyproject.toml poetry.lock ./
-RUN --mount=type=cache,target=/root/.cache/pip,sharing=locked poetry export -f requirements.txt --output requirements.txt --without-hashes
+RUN --mount=type=cache,target=/root/.cache/pip,sharing=locked poetry export -f requirements.txt --output requirements.txt
 
 ### final image ###
 FROM python:3.10-slim@sha256:80619a5316afae7045a3c13371b0ee670f39bac46ea1ed35081d2bf91d6c3dbd