DOC: Add open source diagram tooling #2343

Job	Run time
should run ci	7s
cache-pixi-lock	1m 10s
Integration: ${{ matrix.os }} \| pixi run -e ${{ matrix.pixi-environment }} tests-notebooks	-1s
TypeChecking: pixi run typing	-1s
Unit tests: ${{ matrix.os }} \| pixi run -e ${{ matrix.pixi-environment }} tests	-1s
build-and-upload-nightly-parcels	-1s
merge-test-artifacts	0s
	1m 13s

Provide feedback