Fix Android bindings CI disk space issue

Add jlumbroso/free-disk-space action to clear ~10-15GB of unused
pre-installed software (dotnet, haskell, docker images, large packages)
from GitHub-hosted runners before building Android native libraries.

The CI was failing with "No space left on device" because cross-compiling
Rust for 4 Android architectures in release mode generates large artifacts
that exhaust the default runner disk space.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: pushkarm029

.github/workflows/arkdrop-android-bindings-release.yml

@@ -21,6 +21,17 @@ jobs:
         working-directory: ./drop-core/uniffi/bindings/android
 
     steps:
+      - name: Free Disk Space
+        uses: jlumbroso/free-disk-space@main
+        with:
+          tool-cache: false
+          android: false
+          dotnet: true
+          haskell: true
+          large-packages: true
+          docker-images: true
+          swap-storage: true
+
       - uses: actions/checkout@v4
       - uses: Swatinem/rust-cache@v2