build: use reusable workflow

Author: ReuDa

.github/workflows/reusable-extension-ci.yml

@@ -153,7 +153,7 @@ jobs:
           -d '{"ref":"main","inputs":{"extension":"${{ github.repository }}","version":"${{ steps.meta.outputs.version }}","revision":"${{ github.sha }}"}}'
 
   build-packages:
-    if: ${{ github.event.inputs.build_linux_packages }}
+    if: ${{ github.event.inputs.build_linux_packages == 'true' }}
     name: Build Linux Packages
     needs:
       - audit