Update CI to use Swift 5.4

Author: finagolfin

.github/workflows/sdks.yml

@@ -6,13 +6,13 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - run: |
-          wget https://github.com/buttaface/swift-android-sdk/releases/download/5.3.1/swift-android-aarch64-24-sdk.tar.xz
-          tar xf swift-android-aarch64-24-sdk.tar.xz
-          ln -sf /usr/share/swift/usr/lib/swift/clang swift-android-aarch64-24-sdk/usr/lib/swift/clang
+          wget https://github.com/buttaface/swift-android-sdk/releases/download/5.4/swift-5.4-android-aarch64-24-sdk.tar.xz
+          tar xf swift-5.4-android-aarch64-24-sdk.tar.xz
+          ln -sf /usr/share/swift/usr/lib/swift/clang swift-5.4-android-aarch64-24-sdk/usr/lib/swift/clang
           sed -i 's%/home/butta/swift/swift-5.3.1-RELEASE-ubuntu20.04/usr/bin%/usr/local/bin%' android-aarch64.json
-          sed -i "s%/home/butta/swift/swift-android%`pwd`/swift-android%" android-aarch64.json
+          sed -i "s%/home/butta/swift/swift-android%`pwd`/swift-5.4-android%" android-aarch64.json
           sed -i 's%/home/butta/swift/android-ndk-r21d%/usr/local/lib/android/sdk/ndk-bundle%' android-aarch64.json
-          sed -i 's%/home/butta/swift/android-ndk-r21d%/usr/local/lib/android/sdk/ndk-bundle%' swift-android-aarch64-24-sdk/usr/lib/swift/android/aarch64/glibc.modulemap
+          sed -i 's%/home/butta/swift/android-ndk-r21d%/usr/local/lib/android/sdk/ndk-bundle%' swift-5.4-android-aarch64-24-sdk/usr/lib/swift/android/aarch64/glibc.modulemap
           cat android-aarch64.json
           git clone https://github.com/apple/swift-argument-parser.git
           cd swift-argument-parser