fix build cache

Author: vankoven

.github/workflows/package.yml

@@ -52,28 +52,31 @@ jobs:
           key: ${{ runner.os }}-libbpf
 
       - name: install dependencies
+        if: steps.cache-libbpf.outputs.cache-hit != 'true'
         run: |
           sudo apt update
           sudo apt install dpkg-dev debhelper libelf-dev
 
       - name: build package
+        if: steps.cache-libbpf.outputs.cache-hit != 'true'
         run: |
           git clone https://github.com/sudipm-mukherjee/libbpf
           cd libbpf
           dpkg-buildpackage -uc -us -b
 
-      - name: list build artifacts
-        run: |
-          ls -lah
-
       - name: save libbpf
         id: cache-libbpf-save
+        if: steps.cache-libbpf.outputs.cache-hit != 'true'
         uses: actions/cache/save@v4
         with:
           path: |
             libbpf*.deb
           key: ${{ steps.cache-libbpf.outputs.cache-primary-key }}
 
+      - name: list build artifacts
+        run: |
+          ls -lah
+
       - name: upload package artifacts
         uses: actions/upload-artifact@v4
         with: