fix(workflows): try to terminate anvil server again

.github/workflows/protocol-devchain-anvil.yml

@@ -135,13 +135,17 @@ jobs:
           
           ./scripts/foundry/create_and_migrate_anvil_l2_devchain.sh
 
+          ./scripts/foundry/stop_anvil.sh
+
       - name: Run integration tests against L1 devchain
         if: success() || failure()
         run: |
           source ./scripts/foundry/constants.sh
 
+          echo "Starting L1 from JSON state"
+          
           anvil \
-          --port 8547 \
+          --port $ANVIL_PORT \
           --state $TMP_FOLDER/$L1_DEVCHAIN_FILE_NAME \
           --state-interval $STATE_INTERVAL \
           --gas-limit $GAS_LIMIT \
@@ -151,7 +155,7 @@ jobs:
 
           forge test -vvv \
           --match-path "test-sol/integration/*" \
-          --fork-url http://127.0.0.1:8547
+          --fork-url $ANVIL_RPC_URL
 
       - name: Sanitize ref name
         id: sanitize-ref-name