Proposal : Update Anime Hidamari Sketch x ☆☆☆ studios

Proposal details

This proposal will make the following change(s):

Update the studios of the anime Hidamari Sketch x ☆☆☆

Change the studios from :
Unknown
to
Shaft

Based on the following reason: Missing

With the source: https://myanimelist.net/anime/7062/Hidamari_Sketch_x_%E2%98%86%E2%98%86%E2%98%86?q=Hidamari%20Sketch%20x%20%E2%98%86%E2%98%86%E2%98%86&cat=anime