add another fuzz-failure that doesn't fail (#961)

Maybe the fuzzer runs on outdated versions of `time`?

Author: Byron

gix-date/tests/time/parse.rs

@@ -167,7 +167,7 @@ mod relative {
 mod fuzz {
     #[test]
     fn invalid_but_does_not_cause_panic() {
-        for input in ["7	-𬞋", "5 ڜ-09", "-4 week ago Z"] {
+        for input in ["7	-𬞋", "5 ڜ-09", "-4 week ago Z", "8960609 day ago"] {
             let _ = gix_date::parse(input, Some(std::time::UNIX_EPOCH)).unwrap_err();
         }
     }