Move to cargo clippy

Using clippy as a library has been deprecated, instead the `cargo
clippy` command should be used instead. To comply with this change
clippy has been removed from the `Cargo.toml` and is now installed with
cargo when building in CI.

This has also lead to a few new clippy issues to show up, this includes
everything in the `font` subdirectory. This has been fixed and `font`
should now be covered by clippy CI too.

This also upgrades all dependencies, as a result this fixes #1341 and
this fixes #1344.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/tty.rs b/src/tty.rs
index 166a788e..4da11c0e 100644
--- a/src/tty.rs
+++ b/src/tty.rs
@@ -117,7 +117,7 @@ fn set_controlling_terminal(fd: c_int) {
         // based on architecture (32/64). So a generic cast is used to make sure
         // there are no issues. To allow such a generic cast the clippy warning
         // is disabled.
-        #[cfg_attr(feature = "clippy", allow(cast_lossless))]
+        #[cfg_attr(feature = "cargo-clippy", allow(cast_lossless))]
         libc::ioctl(fd, TIOCSCTTY as _, 0)
     };