Update CHANGELOG.md

Author: marceljk

CHANGELOG.md

@@ -7,8 +7,11 @@
   - **Breaking change:** Fields `ContainerParentId` and `ParentId` are no longer required in `ParentListInner`
 - `sqlserverflex`: [v1.1.0](services/sqlserverflex/CHANGELOG.md#v110-2025-05-14)
   - **Features**: Add new method `ListMetrics`
-- `stackitmarketplace`: [v1.1.0](services/stackitmarketplace/CHANGELOG.md#v110-2025-05-13)
-  - **Breaking Change:** Added organization id to `VendorSubscription`
+- `stackitmarketplace`: 
+  - [v1.2.0](services/stackitmarketplace/CHANGELOG.md#v120-2025-05-14)
+    - **Feature:** Add new method `VendorsSubscriptionsReject`
+  - [v1.1.0](services/stackitmarketplace/CHANGELOG.md#v110-2025-05-13)
+    - **Breaking Change:** Added organization id to `VendorSubscription`
 - `ske`: [v0.22.4](services/ske/CHANGELOG.md#v0224-2025-05-13)
   - **Feature:** Added `ClusterError`
 

services/stackitmarketplace/CHANGELOG.md

@@ -1,3 +1,6 @@
+## v1.2.0 (2025-05-14)
+- **Feature:** Add new method `VendorsSubscriptionsReject`
+
 ## v1.1.0 (2025-05-13)
 - **Breaking Change:** Added organization id to `VendorSubscription`