Prepare 0.13.1 release

Author: tobio

CHANGELOG.md

@@ -1,6 +1,6 @@
 ## [Unreleased]
 
-### Changes
+## [0.13.1] - 2025-12-12
 
 - Fix handling empty types in `elasticstack_elasticsearch_ml_anomaly_detection_job` ([#1544](https://github.com/elastic/terraform-provider-elasticstack/pull/1544))
 - Fix handling empty `clusters` and `run_as` attributes in `elasticstack_elasticsearch_security_role` resource ([#1542](https://github.com/elastic/terraform-provider-elasticstack/pull/1542))

Makefile

@@ -1,7 +1,7 @@
 .DEFAULT_GOAL = help
 SHELL := /bin/bash
 
-VERSION ?= 0.13.0
+VERSION ?= 0.13.1
 
 NAME = elasticstack
 BINARY = terraform-provider-${NAME}