Match Ubuntu NDK (21) to aarch64/M1 (25 rc2)

[leotm]

NDK 23 found (last 2 commits)

/usr/local/lib/android/sdk/ndk: 21.4.7075529, 22.1.7171670, 23.1.7779620

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NDK 25 rc2 downloaded, not found

> Configure project :app
Observed package id 'ndk;21.4.7075529' in inconsistent location '/usr/local/lib/android/sdk/ndk-bundle' (Expected '/usr/local/lib/android/sdk/ndk/21.4.7075529')
Warning: Observed package id 'ndk;21.4.7075529' in inconsistent location '/usr/local/lib/android/sdk/ndk-bundle' (Expected '/usr/local/lib/android/sdk/ndk/21.4.7075529')
Warning: Observed package id 'ndk;21.4.7075529' in inconsistent location '/usr/local/lib/android/sdk/ndk-bundle' (Expected '/usr/local/lib/android/sdk/ndk/21.4.7075529')

Warning: IO exception while downloading manifest:

Ubuntu defaulting

• ANDROID_NDK_HOME: /usr/local/lib/android/sdk/ndk-bundle -> /usr/local/lib/android/sdk/ndk/21.4.7075529
• ANDROID_NDK_ROOT: /usr/local/lib/android/sdk/ndk-bundle -> /usr/local/lib/android/sdk/ndk/21.4.7075529

Solutions

• rm -rf /usr/local/lib/android/sdk/ndk-bundle - prevent side-by-side 21 detection
• w/o ANDROID_NDK_HOME: ${{ steps.setup-ndk.outputs.ndk-path }}, likely fail to find /usr/local/lib/android/sdk/ndk/25.x.x
• ANDROID_NDK_HOME: ${{ steps.setup-ndk.outputs.ndk-path }} should work
• cp -rf ${{ steps.setup-ndk.outputs.ndk-path }} /usr/local/lib/android/sdk/ndk/25.x.x - should work too
• cp -rf ${{ steps.setup-ndk.outputs.ndk-path }} /usr/local/lib/android/sdk/ndk-bundle - should work too

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Spotted in https://github.com/leotm/react-native-template-new-architecture/runs/6261011482?check_suite_focus=true#step:7:62

Missed in #276

Use Groovy var later