Add basic CI/CD functionality

This MR adds a basic CD/CD pipeline, which validates the top-level pipeline.cwl workflow with an example input.

docker/ci-runner/Dockerfile

@@ -6,7 +6,6 @@ RUN export DEBIAN_FRONTEND=noninteractive && \
     apt-get update && \
     apt-get install -y \
     wget \
-    nodejs \
     python3 \
     && \
     rm -rf /var/lib/apt/lists/*
@@ -20,4 +19,3 @@ RUN python3 -m pip install --no-cache-dir --upgrade \
 
 RUN node --version
 RUN cwltool --version
-RUN python3 -m pip list
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