Update GitHub CI for Android

Author: colemancda

.github/workflows/swift.yml

@@ -37,9 +37,20 @@ jobs:
       run: ${{ matrix.options }} swift build -c ${{ matrix.config }}
     - name: Test
       run: ${{ matrix.options }} swift test -c ${{ matrix.config }}
-    - name: Build (Debug)
-      run: swift build -c debug
-    - name: Build (Release)
-      run: swift build -c release
-    - name: Test (Debug)
-      run: swift test -c debug
+
+  android:
+      name: Android
+      strategy:
+        fail-fast: false
+        matrix:
+          swift: ['6.1', 'nightly-6.2']
+          arch: ["aarch64", "x86_64"]
+      runs-on: macos-15
+      timeout-minutes: 30
+      steps:
+        - uses: actions/checkout@v4
+        - name: "Build Swift Package for Android"
+          run: |
+              brew install skiptools/skip/skip || (brew update && brew install skiptools/skip/skip)
+              skip android sdk install --version ${{ matrix.swift }}
+              ANDROID_NDK_ROOT="" skip android build --arch ${{ matrix.arch }}