Set minimum Android SDK version to 30

Because stuff doesn't run on older versions than this.

.github/workflows/main.yml

@@ -124,6 +124,7 @@ jobs:
               "-DCMAKE_TOOLCHAIN_FILE=$ANDROID_NDK_TOOLCHAIN_FILE"
               "-DANDROID_PLATFORM=$ANDROID_PLATFORM"
               "-DANDROID_TARGET_SDK_VERSION=$ANDROID_TARGET_SDK_VERSION"
+              "-DANDROID_MIN_SDK_VERSION=$ANDROID_MIN_SDK_VERSION"
               "-DANDROID_SDK_BUILD_TOOLS_REVISION=$ANDROID_BUILD_TOOLS_VERSION"
               -DANDROID_ABI=arm64-v8a
               -DCMAKE_FIND_ROOT_PATH_MODE_PACKAGE=on
@@ -190,6 +191,7 @@ jobs:
               "-DCMAKE_TOOLCHAIN_FILE=$ANDROID_NDK_TOOLCHAIN_FILE"
               "-DANDROID_PLATFORM=$ANDROID_PLATFORM"
               "-DANDROID_TARGET_SDK_VERSION=$ANDROID_TARGET_SDK_VERSION"
+              "-DANDROID_MIN_SDK_VERSION=$ANDROID_MIN_SDK_VERSION"
               "-DANDROID_SDK_BUILD_TOOLS_REVISION=$ANDROID_BUILD_TOOLS_VERSION"
               -DANDROID_ABI=armeabi-v7a
               -DCMAKE_FIND_ROOT_PATH_MODE_PACKAGE=on
@@ -373,6 +375,7 @@ jobs:
           build_tools_version=34.0.0-rc3
           ndk_version=27.0.12077973
           target_sdk_version=34
+          min_sdk_version=30
           ndk_root="$ANDROID_SDK_ROOT/ndk/$ndk_version"
           ndk_toolchain_file="$ndk_root/build/cmake/android.toolchain.cmake"
           platform="android-$target_sdk_version"
@@ -382,6 +385,7 @@ jobs:
           echo "ANDROID_NDK_TOOLCHAIN_FILE=$ndk_toolchain_file" >> "$GITHUB_ENV"
           echo "ANDROID_PLATFORM=$platform" >> "$GITHUB_ENV"
           echo "ANDROID_TARGET_SDK_VERSION=$target_sdk_version" >> "$GITHUB_ENV"
+          echo "ANDROID_MIN_SDK_VERSION=$min_sdk_version" >> "$GITHUB_ENV"
         if: matrix.cross_os == 'Android'
 
       # Qt's build toolage really likes to auto-detect Android package