Fix | shared vpn-server data source missing index

[github-actions[bot]]

💰 Infracost report

Monthly cost will not change

Cost details (includes details of unsupported resources and skipped projects due to errors)

``` ────────────────────────────────── 131 projects have no cost estimate changes. Run the following command to see their breakdown: infracost breakdown --path=/path/to/code ────────────────────────────────── 2228 cloud resources were detected: ∙ 492 were estimated ∙ 1626 were free ∙ 110 are not supported yet, see https://infracost.io/requested-resources: ∙ 42 x aws_identitystore_group_membership ∙ 23 x aws_identitystore_user ∙ 10 x aws_guardduty_member ∙ 8 x aws_ssoadmin_permission_set ∙ 7 x aws_identitystore_group ∙ 5 x aws_fms_policy ∙ 4 x aws_guardduty_detector ∙ 2 x aws_guardduty_organization_admin_account ∙ 2 x aws_guardduty_organization_configuration ∙ 1 x aws_eks_access_entry ∙ 1 x aws_fms_admin_account ∙ 1 x aws_organizations_delegated_administrator ∙ 1 x aws_organizations_organization ∙ 1 x aws_route53_resolver_firewall_domain_list ∙ 1 x aws_route53_resolver_firewall_rule ∙ 1 x aws_route53_resolver_firewall_rule_group ```

_{This comment will be updated when code changes.}