refactor(clippy): fix new clippy checks (#352)

Author: Xenira

src/args.rs

@@ -240,7 +240,7 @@ impl<'a, 'b> ArgParser<'a, 'b> {
         let max_num_args = self.args.len();
         let min_num_args = self.min_num_args.unwrap_or(max_num_args);
         let num_args = self.arg_zvals.len();
-        let has_variadic = self.args.last().map_or(false, |arg| arg.variadic);
+        let has_variadic = self.args.last().is_some_and(|arg| arg.variadic);
 
         if num_args < min_num_args || (!has_variadic && num_args > max_num_args) {
             // SAFETY: Exported C function is safe, return value is unused and parameters

src/zend/handlers.rs

@@ -241,7 +241,7 @@ impl ZendObjectHandlers {
                         cfg_if::cfg_if! {
                             if #[cfg(php84)] {
                                 #[allow(clippy::unnecessary_mut_passed)]
-                                if zend_is_true(&mut zv) == true {
+                                if zend_is_true(&mut zv) {
                                     return Ok(1);
                                 }
                             } else {