CI: Free up disk space for Android CI

Author: kateinoigakukun

.github/workflows/main.yml

@@ -248,6 +248,8 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
+      - name: Free up disk space
+        run: ./CI/gha-free-disk-space.sh
       - name: Run Tests on Android emulator
         uses: skiptools/swift-android-action@v2
         with:

CI/gha-free-disk-space.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+set -euxo pipefail
+
+echo "===== Checking disk space before cleanup ====="
+
+df -h
+
+echo "===== Cleaning up unused files to free disk space ====="
+
+sudo rm -rf \
+  /usr/share/dotnet \
+  /opt/ghc \
+  /opt/hostedtoolcache/CodeQL
+
+docker image prune --all --force
+docker builder prune -a
+
+echo "===== Checking disk space after cleanup ====="
+df -h