Use package traits when using Swift 6.1 (#490)

Author: fabianfett

.github/workflows/integration_tests.yml

@@ -39,7 +39,7 @@ on:
       matrix_linux_swift_container_image:
         type: string
         description: "Container image for the matrix job. Defaults to matching latest Swift Ubuntu image."
-        default: "swift:amazonlinux2"
+        default: "swiftlang/swift:nightly-6.1-jammy"
 
 ## We are cancelling previously triggered workflow runs
 concurrency:

.github/workflows/pull_request.yml

@@ -12,9 +12,9 @@ jobs:
       license_header_check_project_name: "SwiftAWSLambdaRuntime"
       shell_check_enabled: true
       python_lint_check_enabled: true
-      api_breakage_check_container_image: "swift:6.0-noble"
+      api_breakage_check_container_image: "swiftlang/swift:nightly-6.1-jammy"
       docs_check_container_image: "swift:6.0-noble"
-      format_check_container_image: "swiftlang/swift:nightly-6.0-jammy"
+      format_check_container_image: "swiftlang/swift:nightly-6.1-jammy"
       yamllint_check_enabled: true
 
   unit-tests: