Update version to 1.15.1

A fix for an issue in the 1.15.0 tag was merged, so we'll tag the v1.15.1
release.

Author: rgcase

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.15.1] - 2025-10-01
+
 ### Fixed
 
 - Stopped using state for unknown `account_id` in the `Cluster` resource because

Makefile

@@ -3,7 +3,7 @@ HOSTNAME=registry.terraform.io
 NAMESPACE=cockroachdb
 NAME=cockroach
 BINARY=terraform-provider-${NAME}
-VERSION=1.15.0
+VERSION=1.15.1
 OS := $(shell uname | tr A-Z a-z)
 ARCH := $(shell uname -m | sed 's/x86_64/amd64/')
 OS_ARCH := $(OS)_$(ARCH)