Set Android NDK environment variables in macOS build workflow

Author: anhappdev

.github/workflows/android-build-test-macos.yml

@@ -70,6 +70,12 @@ jobs:
       - name: Prepare Flutter
         run: |
           make flutter/prepare
+      - name: Set env vars
+        run: |
+          echo "ANDROID_NDK_HOME=$ANDROID_HOME/ndk/25.2.9519653" >> "$GITHUB_ENV"
+          echo "ANDROID_NDK_ROOT=$ANDROID_HOME/ndk/25.2.9519653" >> "$GITHUB_ENV"
+          echo "ANDROID_NDK_VERSION=25" >> "$GITHUB_ENV"
+          echo "ANDROID_NDK_API_LEVEL=33" >> "$GITHUB_ENV"
       - name: Print versions
         run: |
           env