Fix basic auth read when anon access disabled

Basic authentication fails when not updating a public repository
with the "Disable Anonymous Access" option enabled

src/main/scala/gitbucket/core/servlet/BasicAuthenticationFilter.scala

@@ -51,6 +51,9 @@ class BasicAuthenticationFilter extends Filter with RepositoryService with Accou
                             requireAuth(response)
                           }
                         }
+                        case Some(account) if (!settings.allowAnonymousAccess) => {
+                          chain.doFilter(req, wrappedResponse)
+                        }
                         case _ => requireAuth(response)
                       }
                     }