community/gitea: update checksum

it's because of a rebuild of the tag, since checksume did missmatch between github and dl.gitea.io witch was caused by another rebuild.

(We do NOT need to rebuild the package, so no version bump)

original run: https://drone.gitea.io/go-gitea/gitea/48808
restart-with-issue: https://drone.gitea.io/go-gitea/gitea/48812
final-restart: https://drone.gitea.io/go-gitea/gitea/48984