Use newer Swift version for wasm

Author: johankool

.github/workflows/ci.yml

@@ -48,12 +48,16 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: bytecodealliance/actions/wasmtime/setup@v1
-      - uses: swiftwasm/setup-swiftwasm@v1
-        with:
-          swift-version: "wasm-5.9.2-RELEASE"
-      - name: Build tests
-        # Extend the stack size to avoid stack overflow in the test suites
-        run: swift build --triple wasm32-unknown-wasi --build-tests -Xlinker -z -Xlinker stack-size=$((1024 * 1024))
+      - name: Install Swift and Swift SDK for WebAssembly
+        run: |
+          PREFIX=/opt/swift
+          set -ex
+          curl -f -o /tmp/swift.tar.gz "https://download.swift.org/swift-6.0.2-release/ubuntu2204/swift-6.0.2-RELEASE/swift-6.0.2-RELEASE-ubuntu22.04.tar.gz"
+          sudo mkdir -p $PREFIX; sudo tar -xzf /tmp/swift.tar.gz -C $PREFIX --strip-component 1
+          $PREFIX/usr/bin/swift sdk install https://github.com/swiftwasm/swift/releases/download/swift-wasm-6.0.2-RELEASE/swift-wasm-6.0.2-RELEASE-wasm32-unknown-wasi.artifactbundle.zip --checksum 6ffedb055cb9956395d9f435d03d53ebe9f6a8d45106b979d1b7f53358e1dcb4
+          echo "$PREFIX/usr/bin" >> $GITHUB_PATH
+      - name: Build
+        run: swift build --swift-sdk wasm32-unknown-wasi -Xlinker -z -Xlinker stack-size=$((1024 * 1024))
       - name: Run tests
         run: wasmtime .build/debug/swift-custom-dumpPackageTests.wasm