Set MSRV based upon 'cargo msrv find'

BlackDex · BlackDex · commit 1b2f538206d6 · 2025-04-23T13:45:38.000+02:00
Signed-off-by: BlackDex &lt;black.dex@gmail.com&gt;
diff --git a/Cargo.toml b/Cargo.toml
@@ -3,6 +3,7 @@ name = "yubico_ng"
 version = "0.13.0"
 authors = ["Mathijs van Veluw <black.dex@gmail.com>"]
 edition = "2021"
+rust-version = "1.81.0"
 
 description = "Yubikey client API library"
 license = "MIT OR Apache-2.0"
