Update vendored workhorse to v8.64.2

workhorse/CHANGELOG

 # Changelog for gitlab-workhorse
 
+## v8.64.2
+
+### Security
+- Stop logging when path is excluded
+  https://gitlab.com/gitlab-org/gitlab-workhorse/-/merge_requests/
+
 ## v8.64.1
 
 ### Security

workhorse/VERSION

-8.64.1
+8.64.2

workhorse/internal/staticpages/servefile.go

@@ -37,7 +37,6 @@ func (s *Static) ServeExisting(prefix urlprefix.Prefix, cache CacheMode, notFoun
 		// %20 in their name.
 		relativePath, err := s.validatePath(prefix.Strip(r.URL.Path))
 		if err != nil {
-			log.WithRequest(r).WithError(err).Error()
 			notFoundHandler.ServeHTTP(w, r)
 			return
 		}