fix/graphnode-deploy (#1064)

Author: shahnawaz-creator

.github/workflows/system_tests.yml

@@ -71,6 +71,6 @@ jobs:
       DEV9KC: ${{ secrets.DEV9KC }}
       SUBGRAPH_API_URL: ${{ secrets.SUBGRAPH_API_URL }}
       TENDERLY_FORK_ID: ${{ secrets.TENDERLY_FORK_ID }}
-      graphnode_network: ${{ secrets.GRAPHNODE_NETWORK }}
-      graphnode_ethereum_node_url: https://rpc.tenderly.co/fork/${{ secrets.TENDERLY_FORK_ID }}
+      GRAPHNODE_NETWORK: ${{ secrets.GRAPHNODE_NETWORK }}
+      GRAPHNODE_ETHEREUM_NODE_URL: https://rpc.tenderly.co/fork/${{ secrets.TENDERLY_FORK_ID }}
       DEVOPS_CHANNEL_WEBHOOK_URL: ${{ secrets.DEVOPS_CHANNEL_WEBHOOK_URL }}