ci(gateway-contracts): fix ci for upgrade

Author: jatZama

.github/workflows/gateway-contracts-upgrade-tests.yml

@@ -118,6 +118,7 @@ jobs:
         run: |
           cp .env.example .env
           cp -r ../../previous-fhevm/gateway-contracts/contracts ./previous-contracts
+          npx hardhat task:deployEmptyUUPSProxies
           npx hardhat compile:specific --contract contracts/immutable
           npx hardhat task:deployPauserSet