Manually install android sdk 24 and 25

All the sdk version prior to 30 were removed from every runner, now the sdk has to be installed manually
actions/runner-images#8952

.github/workflows/windbot.yml

@@ -84,8 +84,8 @@ jobs:
     - name: Install mono
       shell: bash
       run: |
-        choco install mono --x86
-    - name: Install ndk 15
+        choco install mono --x86 --ignore-checksums
+    - name: Install SDK 24, SDK 25 and NDK 15
       shell: bash
       env:
         VS_PREFIX: "16.0_"
@@ -113,8 +113,8 @@ jobs:
       with:
         release_id: ${{ needs.create_release.outputs.output }}
         assets_path: assets
-        
-        
+
+
 # assets to upload android
     # - $ARTIFACT
     # - libWindbot.aar

ci/install-sdk-ndk.sh

@@ -36,9 +36,8 @@ reg add 'HKCU\SOFTWARE\Xamarin\VisualStudio\'$INSTALLATION_ID'\Android' -v Andro
 reg add 'HKCU\SOFTWARE\Xamarin\VisualStudio\'$INSTALLATION_ID'\Android' -v JavaSdkDirectory -t REG_SZ -d "$JAVA_HOME" -f
 
 # Manually install Android SDK Platform 24, the most recent version that still works with Embeddinator 0.4.0
-# cd "$ANDROID_SDK_ROOT"
-# (yes || true) | tools/bin/sdkmanager.bat --sdk_root=. "platforms;android-24"
-# cd -
+# Manually install Android SDK Platform 25, version needed by Xamarin
+(yes || true) | ${ANDROID_SDK_ROOT}/cmdline-tools/latest/bin/sdkmanager.bat --sdk_root=$ANDROID_SDK_ROOT "build-tools;28.0.2" "platforms;android-24" "platforms;android-25"
 
 # Manually install Android NDK r15c, the most recent version that still works with Embeddinator 0.4.0
 curl --retry 5 --connect-timeout 30 --location --remote-header-name --remote-name https://dl.google.com/android/repository/android-ndk-r15c-windows-x86_64.zip