Bump frequenz-microgrid-component-graph version to 0.4#39

shsms merged 2 commits intofrequenz-floss:v0.x.xfrequenz-floss/frequenz-microgrid-component-graph-python:v0.x.xfrom

shsms:graph-rs-0.4shsms/frequenz-microgrid-component-graph-python:graph-rs-0.4Copy head branch name to clipboard