Release for M1 MacOS and custom data directories for k3sup join

Changelog for 0.12.2:

• PR #388 Make server's data-dir configurable for getting node token in join command by @alexellis

Commits
0c77d99 Add build for darwin arm64 and adjust get accordingly by @Shikachuu
ab154f7 Update examples for install, join and main command by @alexellis
ea0ddb2 Update .DEREK.yml file by @alexellis
8723f19 Remove old packages from apps feature by @alexellis
7d6f3e3 Make data-dir configurable for getting node token by @alexellis

Changes: 0.12.1...0.12.2

Generated by Derek