Also grab NDK for releases

.github/workflows/android-build.yml

@@ -16,6 +16,8 @@ jobs:
         uses: actions/setup-java@v1
         with:
           java-version: 11
+      - name: Install non-automatically-fetched NDK
+        run: sdkmanager "ndk;21.0.6113669"
       - name: Create version name
         run: echo "VERSION_NAME=$(git describe --tags HEAD)" >> $GITHUB_ENV
       - name: Build forkRelease variant of app
@@ -65,6 +67,8 @@ jobs:
         uses: actions/setup-java@v1
         with:
           java-version: 11
+      - name: Install non-automatically-fetched NDK
+        run: sdkmanager "ndk;21.0.6113669"
       - name: Run tests
         uses: eskatos/gradle-command-action@v1
         with:
@@ -84,6 +88,8 @@ jobs:
         uses: actions/setup-java@v1
         with:
           java-version: 11
+      - name: Install non-automatically-fetched NDK
+        run: sdkmanager "ndk;21.0.6113669"
       - name: Run detekt
         uses: eskatos/gradle-command-action@v1
         with:
@@ -108,6 +114,8 @@ jobs:
         uses: actions/setup-java@v1
         with:
           java-version: 11
+      - name: Install non-automatically-fetched NDK
+        run: sdkmanager "ndk;21.0.6113669"
       - name: Run ktlint
         uses: eskatos/gradle-command-action@v1
         with:
@@ -127,6 +135,8 @@ jobs:
         uses: actions/setup-java@v1
         with:
           java-version: 11
+      - name: Install non-automatically-fetched NDK
+        run: sdkmanager "ndk;21.0.6113669"
       - name: Run lintDebug
         uses: eskatos/gradle-command-action@v1
         with: