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, 7 insertions, 1 deletions

diff --git a/font/src/ft/fc/char_set.rs b/font/src/ft/fc/char_set.rs
index e6fe027a..151d14a3 100644
--- a/font/src/ft/fc/char_set.rs
+++ b/font/src/ft/fc/char_set.rs
@@ -24,7 +24,13 @@ foreign_type! {
 }
 
 impl CharSet {
-    pub fn new() -> CharSet {
+    pub fn new() -> Self {
+        Self::default()
+    }
+}
+
+impl Default for CharSet {
+    fn default() -> Self {
         CharSet(unsafe { FcCharSetCreate() })
     }
 }