fix: shellcheck

cdk/templates/run-contract-setup.sh

@@ -83,7 +83,7 @@ jq --slurpfile rollup create_rollup_output.json '. + $rollup[0]' deploy_output.j
 # older fork7 code to be compatibile with some of the fork8
 # automations. This schema matching can be dropped once this is
 # versioned up to 8
-fork_id={{.zkevm_fork_id}}
+fork_id="{{.zkevm_fork_id}}"
 if [[ fork_id -lt 8 ]]; then
     jq '.polygonRollupManagerAddress = .polygonRollupManager' combined.json > c.json; mv c.json combined.json
     jq '.deploymentRollupManagerBlockNumber = .deploymentBlockNumber' combined.json > c.json; mv c.json combined.json