This test copies the example `secrets.nix` and age files and uses the
user key to rekey them. It compares the hash before and after to ensure
that the age file is actually being changed.
Fix this mypy typcheck error in the test builder:
testScriptWithTypes:52: error: Argument 1 to "wait_until_tty_matches" of
"Machine" has incompatible type "int"; expected "str"
system1.wait_until_tty_matches(2, "login: ")
This makes the test succeed again.
flake.lock previously included a "indirect" reference to nixpkgs.
I am not sure what this means but I added `inputs.nixpkgs` and updated nixpkgs because this old version of nixpkgs didn't have any support for aarch64-darwin at all.
Now on a aarch64-darwin I can type `nix build` and get a working version of agenix.
