fix(opensearch) generate docs

Author: cgoetz-inovex

docs/data-sources/opensearch_instance.md

@@ -59,4 +59,4 @@ Read-Only:
 - `sgw_acl` (String) Comma separated list of IP networks in CIDR notation which are allowed to access this instance.
 - `syslog` (List of String) List of syslog servers to send logs to.
 - `tls_ciphers` (List of String) List of TLS ciphers to use.
-- `tls_protocols` (String) The TLS protocol to use.
+- `tls_protocols` (List of String) List of TLS protocols to use.