Thanks clippy

Since Rust 1.74.0, there is an `other` function to make an
`ErrorKind::Other`. This helps make code shorter and more readable.

- https://doc.rust-lang.org/std/io/struct.Error.html#method.other

Using that function fixes two `clippy` errors.

Author: EliahKagan

src/bat.rs

@@ -41,7 +41,7 @@ impl Support {
         {
             Ok(())
         } else {
-            Err(io::Error::new(io::ErrorKind::Other, "bat exited with an error"))
+            Err(io::Error::other("bat exited with an error"))
         }
     }
 }

src/command/changelog.rs

@@ -97,7 +97,7 @@ pub fn changelog(opts: Options, crates: Vec<String>) -> anyhow::Result<()> {
                 },
                 capitalize_commit,
             )
-            .map_err(|err| std::io::Error::new(std::io::ErrorKind::Other, err))?;
+            .map_err(std::io::Error::other)?;
             file.write_all(buf.as_bytes())
         })?;
         if let Some(bat) = bat.as_ref() {