Fix restoring cached p7zip 7z.so on Ubuntu 24.04 runner

.github/workflows/test_ubuntu24.yml

@@ -79,18 +79,12 @@ jobs:
       if: ${{ matrix.bit7z_link_libcpp == 'ON' && contains(matrix.c_compiler, 'clang-18') }}
       run: sudo apt-get install libc++-18-dev libc++abi-18-dev -y
 
-    - name: Create missing p7zip directory
-      shell: bash
-      if: ${{ matrix.bit7z_build_for_p7zip == 'ON' }}
-      run: |
-        sudo mkdir -p /usr/lib/p7zip
-
     - name: Cache p7zip's 7z.so
       uses: actions/cache@v4
       id: cache-p7zip-so
       if: ${{ matrix.bit7z_build_for_p7zip == 'ON' }}
       with:
-        path: /usr/lib/p7zip/7z.so
+        path: ${{ github.workspace }}/../p7zip/bin/7z.so
         key: ${{ runner.os }}-p7zip-x64-7z.so
 
     - name: Fix missing p7zip shared library
@@ -100,6 +94,11 @@ jobs:
         git clone --depth 1 https://github.com/rikyoz/p7zip ${{ github.workspace }}/../p7zip
         curl https://gist.githubusercontent.com/rikyoz/472257e7883054fdfcf7a7fac5715372/raw/11057145a6082615f4452f7f50da6e7b3d557f82/p7zip_gcc10.patch | git -C ${{ github.workspace }}/../p7zip apply -v --no-index
         make -C ${{ github.workspace }}/../p7zip 7z
+        
+    - name: Install p7zip's 7z.so
+      shell: bash
+      if: ${{ matrix.bit7z_build_for_p7zip == 'ON' }}
+      run: |
         sudo mkdir -p /usr/lib/p7zip
         sudo cp ${{ github.workspace }}/../p7zip/bin/7z.so /usr/lib/p7zip/7z.so