Add TCM 1.2.1 release (#4430)

Author: p7nov

doc/tooling/tcm/tcm_releases/index.rst

@@ -28,7 +28,8 @@ Supported versions
 
         *   -   :ref:`1.2 <tcm_releases_1_2>`
             -   July 30, 2024
-            -   1.2.0
+            -   | 1.2.1
+                | 1.2.0
 
         *   -   :ref:`1.1 <tcm_releases_1_1>`
             -   May 16, 2024

doc/tooling/tcm/tcm_releases/tcm_1.2.rst

@@ -5,7 +5,7 @@ Tarantool Cluster Manager 1.2
 
 Release date: July 30, 2024
 
-Latest release in series: 1.2.0
+Latest release in series: 1.2.1
 
 |tcm_full_name| 1.2 introduces new features that extend its
 cluster management capabilities. Below is an overview of its key updates.