chore(deps): update determinatesystems/nix-installer-action action to v21#116

dc-tec wants to merge 1 commit intomaindc-tec/nixvim:mainfrom

renovate/determinatesystems-nix-installer-action-21.xdc-tec/nixvim:renovate/determinatesystems-nix-installer-action-21.xCopy head branch name to clipboard