Update text referencing Dalton Maag as the type agency doing work on the fonts

[fitojb]

Canonical has now commissioned Type Network for the 2022-2023 updates.

[anthonydillon]

@fitojb thanks for taking the time to point this issue out to us. @marcushas can you look into this please?

[marcushas]

@anthonydillon yes will do

[marcushas]

@lyubomir-popov Can we chat about this when you are back please