• added: Add RouterExt::route_with_tsr for adding routes with an
  additional "trailing slash redirect" route (#1119)
• added: Support chaining handlers with HandlerCallWithExtractors::or (#1170)
• added: Add Protocol Buffer extractor and response (#1239)
• added: Add Either* types for combining extractors and responses into a
  single type (#1263)
• added: WithRejection extractor for customizing other extractors' rejections (#1262)
• added: Add sync constructors to CookieJar, PrivateCookieJar, and
  SignedCookieJar so they're easier to use in custom middleware
• changed: For methods that accept some S: Service, the bounds have been
  relaxed so the return type can be any type that implements IntoResponse rather than being a
  literal Response
• change: axum-extra's MSRV is now 1.60 (#1239)
• breaking: Form has a new rejection type (#1496)
• breaking: Query has a new rejection type (#1496)
• breaking: Resource::nest and Resource::nest_collection have been
  removed. You can instead convert the Resource into a Router and
  add additional routes as necessary (#1086)
• breaking: SignedCookieJar and PrivateCookieJar now extracts the keys
  from the router's state, rather than extensions
• breaking: Resource has a new S type param which represents the state (#1155)
• breaking: RouterExt::route_with_tsr now only accepts MethodRouters (#1155)
• added: RouterExt::route_service_with_tsr for routing to any Service (#1155)