CI: modify android.yml

Author: KangLin

.github/workflows/android.yml

@@ -342,13 +342,13 @@ jobs:
       - name: Build QFtpServer
         working-directory: ${{env.SOURCE_DIR}}
         run: |
-          if [ ! -d ${{env.INSTALL_DIR}}/lib/cmake/QFtpServerLib/QFtpServerLib ]; then
+          if [ ! -d ${{env.INSTALL_DIR}}/lib/cmake/QFtpServerLib ]; then
             git clone --depth=1 https://github.com/KangLin/QFtpServer.git
             cd QFtpServer
             cmake -E make_directory build
             cd build
             ${QT_ROOT_DIR}/bin/qt-cmake .. -DCMAKE_BUILD_TYPE=${{matrix.BUILD_TYPE}} \
-                -DCMAKE_INSTALL_PREFIX=${INSTALL_DIR} \
+                -DCMAKE_INSTALL_PREFIX=${{ env.INSTALL_DIR }} \
                 -DCMAKE_PREFIX_PATH=${QT_ROOT_DIR}:${{env.INSTALL_DIR}}/lib/cmake \
                 -DQT_HOST_PATH=${QT_ROOT_DIR}/../gcc_64 \
                 -DQt6LinguistTools_DIR=${QT_ROOT_DIR}/../gcc_64/lib/cmake/Qt6LinguistTools \