chore: add PAGARME_WITHDRAWAL_RELEASE_DAYS em .env.example

.env.example

@@ -60,3 +60,5 @@ PAGARME_PLATFORM_PIX_FEE_RATE=0.11
 PAGARME_PLATFORM_CREDIT_CARD_FEE_RATE=0.1457
 
 PAGARME_TRANSFER_FEE_AMOUNT=3.67
+
+PAGARME_WITHDRAWAL_RELEASE_DAYS=2