Primary change

Address too aggressive warning logging on LogHandlers that do not support MetadataProvider. The warning would be emitted too frequently, resulting in flooding logs with warnings. Instead, the warning is now emitted once per log handler type.

What's Changed

• Avoid logging warnings when handler does not support metadataproviders by @ktoso in https://github.com/apple/swift-log/pull/252
• Handle providers properly in multiplex log handler by @ktoso in https://github.com/apple/swift-log/pull/254
• Add CI for Swift 5.8 and update nightly to Ubuntu 22.04 by @yim-lee in https://github.com/apple/swift-log/pull/255

Full Changelog: https://github.com/apple/swift-log/compare/1.5.1...1.5.2