ci: fix working-directory for allowing permission

Signed-off-by: Matheus Cruz <[email protected]>

Author: mcruzdev

.github/workflows/build.yml

@@ -106,6 +106,7 @@ jobs:
         uses: buildpacks/github-actions/[email protected]
 
       - name: Allow executing Chromium Buildpack
+        working-directory: whatsapp
         run: chmod +x ./chromium-buildpack/bin/build
 
       - name: Build and publish WhatsApp image with Buildpacks