install.sh cannot determine latest version of lab

[ghost]

install.sh executes curl -sL "https://github.com/zaquestion/lab/tags" | grep tag-name to determine the latest version of lab. This command has no output. Hence the rest of the script fails.

I would suggest to instead use the GitHub API to determine the latest version.

[zaquestion]

@urzds Thanks for the heads up! The issue should be resolved now, I've switched the logic to use the GitHub API