refactor: Update test runners

Author: JimmyMAndersson

.github/workflows/TestSuite.yml

@@ -6,25 +6,18 @@ on:
   push:
     branches: [ main ]
 
-env:
-  DEVELOPER_DIR: /Applications/Xcode_16.1.app
-
 jobs:
-  macOS:
-    runs-on: macos-15
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: Run macOS Tests
-      run: swift test -c release --parallel
-      
-  Linux:
-    runs-on: ubuntu-20.04
-    
+  test:
+    name: Swift ${{ matrix.swift }} on ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest]
+        swift: ["6.0"]
+    runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v3
-    - uses: swift-actions/setup-swift@v1
-      with:
-        swift-version: '5.9'
-    - name: Run Linux Tests
-      run: swift test -c release --parallel
+      - uses: SwiftyLab/setup-swift@latest
+        with:
+          swift-version: ${{ matrix.swift }}
+      - uses: actions/checkout@v4
+      - name: Run tests
+        run: swift test -c release --parallel

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:5.9
+// swift-tools-version:6.0
 
 import PackageDescription
 
@@ -36,7 +36,7 @@ let package = Package(
       dependencies: ["StatKit"]
     )
   ],
-  swiftLanguageVersions: [
-    .v5
+  swiftLanguageModes: [
+    .v6
   ]
 )