fix: adds BURNER_PUBLIC_KEY env variable to workflow

.github/workflows/lint.yaml

@@ -33,6 +33,7 @@ jobs:
       - name: Run hardhat node, deploy contracts (& generate contracts typescript output)
         env:
           NETWORK: ${{ secrets.NETWORK }}
+          BURNER_PUBLIC_KEY: ${{ secrets.BURNER_PUBLIC_KEY }}
         run: yarn chain & yarn deploy:lens & yarn deploy:local
 
       - name: Run nextjs lint