Draft: feat: Add `signstar-sign`

Fixes: #34

Cargo.lock

@@ -3465,9 +3465,9 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "1.43.0"
+version = "1.44.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3d61fa4ffa3de412bfea335c6ecff681de2b609ba3c77ef3e00e521813a9ed9e"
+checksum = "9975ea0f48b5aa3972bf2d888c238182458437cc2a19374b81b25cdf1023fb3a"
 dependencies = [
  "backtrace",
  "bytes",