resource share user

Author: sbaidachni

infra/main.tfvars.json

@@ -2,7 +2,7 @@
     "location": "${AZURE_LOCATION}",
     "use_billing_policy": "${USE_BILLING_POLICY:-false}",
     "azd_environment_name": "${AZURE_ENV_NAME}",
-    "resource_share_user": ${RESOURCE_SHARE_USER},
+    "resource_share_user": "${RESOURCE_SHARE_USER}",
     "deploy_github_runner": "${DEPLOY_GITHUB_RUNNER:-false}",
     "enable_failover_github_runner": "${ENABLE_FAILOVER_GITHUB_RUNNER:-false}",
     "github_runner_config": {