v5.0.11

Thank you again to all contributors and reviewers :)

• docs updates
• go 1.21 in ci
• typos in comments
• middleware: Sunset, middleware which can be used to deprecate an endpoint (#844)
• middleware: use original expvar handler for profiler middleware (#848)
• updated _examples/httplog to use "log/slog" in go 1.21+
• middleware: new SuppressNotFound
• ensure to reset methodsAllowed between requests (9dd8b4a)
• History of changes, see v5.0.10...v5.0.11