CI/CD: Add clippy and update actions

* Add clippy to CI.

* Update .github/workflows/ci.yml

* Update .github/workflows/ci.yml

* Use `cargo check` instead of `cargo build`

* Update CD workflow

---------

Co-authored-by: Henrik Friedrichsen <henrik@affekt.org>

src/ui/cover.rs

@@ -151,7 +151,7 @@ impl CoverView {
         if ueberzug.is_none() {
             *ueberzug = Some(
                 std::process::Command::new("ueberzug")
-                    .args(&["layer", "--silent"])
+                    .args(["layer", "--silent"])
                     .stdin(Stdio::piped())
                     .stdout(Stdio::piped())
                     .spawn()?,