dockerfile: pin graphviz to before 8.x

Author: mr-c

cwltool.Dockerfile

@@ -18,13 +18,13 @@ RUN pip install --force-reinstall --no-index --no-warn-script-location \
 FROM python:3.11-alpine as module
 LABEL maintainer [email protected]
 
-RUN apk add --no-cache docker nodejs graphviz libxml2 libxslt
+RUN apk add --no-cache docker nodejs 'graphviz<8' libxml2 libxslt
 COPY --from=builder /pythonroot/ /
 
 FROM python:3.11-alpine
 LABEL maintainer [email protected]
 
-RUN apk add --no-cache docker nodejs graphviz libxml2 libxslt
+RUN apk add --no-cache docker nodejs 'graphviz<8' libxml2 libxslt
 COPY --from=builder /pythonroot/ /
 COPY cwltool-in-docker.sh /cwltool-in-docker.sh