CI: Test with RabbitMQ 4.0.x

.docker/aiida-core-base/Dockerfile

@@ -24,7 +24,7 @@ ENV SYSTEM_USER="${SYSTEM_USER}"
 
 # Install all OS dependencies for notebook server that starts but lacks all
 # features (e.g., download as all possible file formats)
-ENV DEBIAN_FRONTEND noninteractive
+ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update --yes && \
     # - apt-get upgrade is run to patch known vulnerabilities in apt-get packages as
     #   the ubuntu base image is rebuilt too seldom sometimes (less than once a month)
@@ -145,7 +145,7 @@ RUN set -x && \
 # Add ~/.local/bin to PATH where the dependencies get installed via pip
 # This require the package installed with `--user` flag in pip, which we set as default.
 ENV PATH=${PATH}:/home/${SYSTEM_USER}/.local/bin
-ENV PIP_USER 1
+ENV PIP_USER=1
 
 # Switch to root to install AiiDA and set AiiDA as service
 # Install AiiDA from source code

.github/workflows/nightly.yml

@@ -67,13 +67,15 @@ jobs:
       uses: ./.github/actions/install-aiida-core
       with:
         python-version: '3.11'
+        from-lock: 'true'
 
     - name: Setup environment
-      run: .github/workflows/setup.sh
+      # NOTE: virtual env in .venv created by uv in previous step
+      run: source .venv/bin/activate && .github/workflows/setup.sh
 
     - name: Run tests
       id: tests
-      run: .github/workflows/tests_nightly.sh
+      run: source .venv/bin/activate && .github/workflows/tests_nightly.sh
 
     - name: Slack notification
       # Always run this step (otherwise it would be skipped if any of the previous steps fail) but only if the
@@ -101,7 +103,7 @@ jobs:
       matrix:
         # Currently supported RMQ versions per:
         # https://www.rabbitmq.com/docs/which-erlang#compatibility-matrix
-        rabbitmq-version: ['3.11', '3.12', '3.13']
+        rabbitmq-version: ['3.11', '3.12', '3.13', '4.0']
 
     services:
       rabbitmq:
@@ -118,18 +120,19 @@ jobs:
       uses: ./.github/actions/install-aiida-core
       with:
         python-version: '3.11'
+        from-lock: 'true'
 
     - name: Setup SSH on localhost
-      run: .github/workflows/setup_ssh.sh
+      run: source .venv/bin/activate && .github/workflows/setup_ssh.sh
 
     - name: Suppress RabbitMQ version warning
-      run: verdi config set warnings.rabbitmq_version False
+      run: uv run verdi config set warnings.rabbitmq_version False
 
     - name: Run tests
       id: tests
       env:
         AIIDA_WARN_v3: 0
-      run: pytest -s --db-backend sqlite -m 'requires_rmq' tests/
+      run: uv run pytest -s --db-backend sqlite -m 'requires_rmq' tests/
 
     - name: Slack notification
       # Always run this step (otherwise it would be skipped if any of the previous steps fail) but only if the