ci: fix hosted Swift toolchain gates

.github/workflows/ci.yml

@@ -50,6 +50,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Install Swift toolchain dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libcurl4-openssl-dev
       - name: Install swiftly
         run: |
           curl -L https://download.swift.org/swiftly/linux/swiftly-$(uname -m).tar.gz > swiftly.tar.gz

CHANGELOG.md

@@ -24,3 +24,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   check that can run through Claw Mini's Lima VM.
 - Add Yams and CYaml attribution without copying their implementation into
   `Sources/`.
+
+### Changed
+
+- Lower the package tools version to Swift 6.1 for hosted macOS CI compatibility
+  and install Linux Swift toolchain prerequisites for the WASM CI job.

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version: 6.2
+// swift-tools-version: 6.1
 
 import PackageDescription