update rust toolchain to 2023-04-20 (!3916) · Merge requests · Veloren / veloren · GitLab

Marcel requested to merge xMAC94x/update_toolchain into master May 05, 2023

By opening this merge request, you agree to release your code and all other changes under the GPL 3 license and to abide by the terms set by this license.
Migrations have been added if applicable
Significant changes of this merge request have been added to the changelog.