Release v1.55.0

What's Changed

• Update E3043 for Serverless::Application by @kddejong in #4617
• Update W2533 Handler/Runtime on Zip Serverless::Function by @kddejong in #4618
• Update W2530 SnapStart support for Serverless::Function by @kddejong in #4616
• Update E3724 to validate IgnoreGlobals keys by @kddejong in #4615
• Update E2529 count SAM CloudWatchLogs events by @kddejong in #4614
• Validate Fn::Select negative indexes by @0xTaoZ in #4622
• New rule W3001 to warn for ignored SAM resource attributes by @0xTaoZ in #4620
• test(W3001): cover guard branches and remove dead code by @kddejong in #4624
• Update CloudFormation schemas to 2026-08-11 by @github-actions[bot] in #4602

Full Changelog: v1.54.0...v1.55.0