Install ccache on CI

Author: kraenhansen

.github/workflows/check.yml

@@ -68,6 +68,8 @@ jobs:
         with:
           packages: tools platform-tools ndk;${{ env.NDK_VERSION }}
       - run: rustup target add x86_64-linux-android aarch64-linux-android armv7-linux-androideabi i686-linux-android aarch64-apple-ios-sim
+      - name: ccache
+        uses: hendrikmuhs/ccache-action@v1.2
       - run: npm ci
       - run: npm run bootstrap
       # Unit tests