Add v23.2.1 cloud-first release notes

Addresses part of DOC-7792

src/current/_data/releases.yml

@@ -5433,3 +5433,37 @@
     docker_arm_limited_access: false
   source: true
   previous_release: v22.2.17
+
+- release_name: v23.2.1
+  major_version: v23.2
+  release_date: '2024-02-15'
+  release_type: Production
+  go_version: go1.21
+  sha: d883e5469388eb44c830e126408b286ac1627a2e
+  has_sql_only: true
+  has_sha256sum: true
+  mac:
+    mac_arm: true
+    mac_arm_experimental: true
+    mac_arm_limited_access: false
+  windows: true
+  linux:
+    linux_arm: true
+    linux_arm_experimental: false
+    linux_arm_limited_access: false
+    linux_intel_fips: true
+    linux_arm_fips: false
+  docker:
+    docker_image: cockroachdb/cockroach
+    docker_arm: true
+    docker_arm_experimental: false
+    docker_arm_limited_access: false
+  source: true
+  previous_release: v23.2.0
+  cloud_only: True
+  cloud_only_message_short: 'Available only to select CockroachDB Cloud clusters'
+  cloud_only_message: >
+      This version is currently available only to select
+      CockroachDB Cloud clusters. To request to upgrade
+      a CockroachDB self-hosted cluster to this version,
+      [contact support](https://support.cockroachlabs.com/hc/en-us/requests/new).