Update workers docker image to have smaller ones

worker-{{cookiecutter.slug}}/.gitlab-ci.yml

@@ -4,7 +4,8 @@ stages:
   - release
 
 test:
-  image: python:3
+  # Pinned to <3.12 till next arkindex-base-worker release
+  image: python:3.11
 
   stage: test
   cache:

worker-{{cookiecutter.slug}}/Dockerfile

-FROM python:3.11
+FROM python:3.11-slim
 
 WORKDIR /src
 
+# Install curl
+ENV DEBIAN_FRONTEND=non-interactive
+RUN apt-get update -q -y && apt-get install -q -y --no-install-recommends curl
+
 # Install worker as a package
 COPY worker_{{cookiecutter.slug}} worker_{{cookiecutter.slug}}
 COPY requirements.txt setup.py VERSION ./
-RUN pip install .
+RUN pip install . --no-cache-dir
 
 # Add archi local CA
 RUN curl https://assets.teklia.com/teklia_dev_ca.pem > /usr/local/share/ca-certificates/arkindex-dev.crt && update-ca-certificates