Merge pull request #45 from C2Redhat/lowest-1.77

github actions: update recommended lowest supported Rust to 1.77

Author: mulkieran

Cargo.toml

@@ -3,7 +3,7 @@ name = "loopdev-3"
 description = "Setup and control loop devices"
 version = "0.5.1"
 authors = ["Stratis Developers <[email protected]>", "Michael Daffin <[email protected]>"]
-rust-version = "1.74.0"
+rust-version = "1.77.0"  # LOWEST SUPPORTED RUST TOOLCHAIN
 license = "MIT"
 documentation = "https://docs.rs/loopdev-3"
 repository = "https://github.com/stratis-storage/loopdev-3"