Fix linting

Author: ja573

thoth-api/src/model/publication/tests.rs

@@ -372,8 +372,10 @@ mod validation {
 
     #[test]
     fn normalise_isbn_accepts_valid_hyphenless_isbn13() {
-        let mut publication: Publication = Default::default();
-        publication.isbn = Some(raw_isbn("9783943253962"));
+        let mut publication = Publication {
+            isbn: Some(raw_isbn("9783943253962")),
+            ..Default::default()
+        };
 
         publication.normalise_isbn().expect("ISBN should normalise");
 
@@ -385,8 +387,10 @@ mod validation {
 
     #[test]
     fn normalise_isbn_rejects_invalid_isbn() {
-        let mut publication: Publication = Default::default();
-        publication.isbn = Some(raw_isbn("not-an-isbn"));
+        let mut publication = Publication {
+            isbn: Some(raw_isbn("not-an-isbn")),
+            ..Default::default()
+        };
 
         let result = publication.normalise_isbn();
         assert!(matches!(result, Err(ThothError::IsbnParseError(_))));