fix: hardcode NETWORK_NAME in deploy-subgraph workflow

Author: Le-Caignec

.github/workflows/deploy-subgraph.yml

@@ -42,7 +42,7 @@ jobs:
 
       - name: Deploy Subgraph
         env:
-          NETWORK_NAME: ${{ github.event.inputs.networkName }}
+          NETWORK_NAME: bellecour
           VERSION_LABEL: ${{ github.event.inputs.versionLabel }}
           GRAPHNODE_URL: ${{ vars.GRAPHNODE_URL }}
           IPFS_URL: ${{ vars.IPFS_URL }}