Bump Swift toolchain snapshots in test.yml

Bumping to `2026-03-05` for 6.3 and `2026-03-09` for `main`.

Author: MaxDesiatov

.github/workflows/test.yml

@@ -21,17 +21,17 @@ jobs:
               JAVASCRIPTKIT_DISABLE_TRACING_TRAIT=1
           - os: ubuntu-24.04
             toolchain:
-              download-url: https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT-SNAPSHOT-2025-12-01-a/swift-DEVELOPMENT-SNAPSHOT-2025-12-01-a-ubuntu24.04.tar.gz
+              download-url: https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT-SNAPSHOT-2026-03-09-a/swift-DEVELOPMENT-SNAPSHOT-2026-03-09-a-ubuntu24.04.tar.gz
             wasi-backend: Node
             target: "wasm32-unknown-wasip1"
           - os: ubuntu-24.04
             toolchain:
-              download-url: https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DEVELOPMENT-SNAPSHOT-2025-12-05-a/swift-6.3-DEVELOPMENT-SNAPSHOT-2025-12-05-a-ubuntu24.04.tar.gz
+              download-url: https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DEVELOPMENT-SNAPSHOT-2026-03-05-a/swift-6.3-DEVELOPMENT-SNAPSHOT-2026-03-05-a-ubuntu24.04.tar.gz
             wasi-backend: Node
             target: "wasm32-unknown-wasip1"
           - os: ubuntu-22.04
             toolchain:
-              download-url: https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT-SNAPSHOT-2025-12-01-a/swift-DEVELOPMENT-SNAPSHOT-2025-12-01-a-ubuntu22.04.tar.gz
+              download-url: https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT-SNAPSHOT-2026-03-09-a/swift-DEVELOPMENT-SNAPSHOT-2026-03-09-a-ubuntu22.04.tar.gz
             wasi-backend: Node
             target: "wasm32-unknown-wasip1-threads"