fix: keep .env during repo sync 2 (#2157)

.github/workflows/samples-repo-sync.yml

@@ -43,6 +43,7 @@ jobs:
 
       - name: Explicitly add the .env file
         run: |
+          cd ${{ matrix.public-repo }}
           git config user.name 'Kalix Bot'
           git config user.email '[email protected]'
           git add .env