sd_journal_h.rs allow(clippy::all)

Allow all clippy warnings and errors.

Currently clippy generates 159 warnings from this
file. It's a lot of work to change and would need to be redone
if this file is ever regenerated. So just disable all checks
(allow all warnings and errors).

src/bindings/sd_journal_h.rs

@@ -21,6 +21,7 @@
 //!
 //! [`sd-journal.h`]: https://github.com/systemd/systemd/blob/v249/src/systemd/sd-journal.h
 
+#![allow(clippy::all)]
 #![allow(unused_variables)]
 #![allow(non_camel_case_types)]
 #![allow(non_snake_case)]