try to fix github caching

Author: nift4

.github/workflows/ci.yml

@@ -25,14 +25,15 @@ jobs:
     - name: Download GCC for Android
       if: steps.cache-gcc.outputs.cache-hit != 'true'
       run: |
-        git clone https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.9 ~/gcc-toolchain
-        cd ~/gcc-toolchain
+        mkdir ~/gcc-toolchain
+        git clone https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.9 ~/gcc-toolchain/arm32
+        cd ~/gcc-toolchain/arm32
         git checkout e9b2ab0932573a0ca90cad11ab75d9619f19c458
-        git clone https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9 ~/gcc64-toolchain
-        cd ~/gcc64-toolchain
+        git clone https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9 ~/gcc-toolchain/arm64
+        cd ~/gcc-toolchain/arm64
         git checkout 22f053ccdfd0d73aafcceff3419a5fe3c01e878b
     - name: Build the bootloader
-      run: PATH=/home/runner/gcc-toolchain/bin:/home/runner/gcc64-toolchain/bin:$PATH bash k6789v1_64-build.sh
+      run: PATH=/home/runner/gcc-toolchain/arm32/bin:/home/runner/gcc-toolchain/arm64/bin:$PATH bash k6789v1_64-build.sh
     - name : Upload bootloader (unsigned)
       uses: actions/upload-artifact@v4
       with: