fix: Add ttf-freefont to Dockerfile for graphviz

recast-hep / recast-atlas

CLI for ATLAS RECAST contributors

https://recast.docs.cern.ch/

Apache License 2.0

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Closed matthewfeickert closed 2 years ago

matthewfeickert commented 2 years ago

Resolves #67

ttf-freefont is necessary for graph label text to get rendered on the DAGs that graphviz draws when the dot command is run

* Add ttf-freefont to Dockerfile installs
   - Necessary font dependency of graphviz

matthewfeickert commented 2 years ago

@lukasheinrich I'm going to merge this in as it is just an addition to the Dockerfile, but I'm happy to discuss any aspects of this.