test.yml: bump toolchain to swift-DEVELOPMENT-SNAPSHOT-2026-01-07-a

Author: MaxDesiatov

.github/workflows/test.yml

@@ -117,7 +117,7 @@ jobs:
       - uses: actions/checkout@v6
       - uses: ./.github/actions/install-swift
         with:
-          download-url: https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT-SNAPSHOT-2025-09-14-a/swift-DEVELOPMENT-SNAPSHOT-2025-09-14-a-ubuntu22.04.tar.gz
+          download-url: https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT-SNAPSHOT-2026-01-07-a/swift-DEVELOPMENT-SNAPSHOT-2026-01-07-a-ubuntu22.04.tar.gz
       - uses: swiftwasm/setup-swiftwasm@v2
         id: setup-wasm32-unknown-wasip1
         with: { target: wasm32-unknown-wasip1 }