Add change log for 21 November

Author: Blargian

docs/cloud/reference/01_changelog/01_changelog.md

@@ -39,6 +39,10 @@ In addition to this ClickHouse Cloud changelog, please see the [Cloud Compatibil
   </a>
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+## November 21, 2025 {#november-21-2025}
+
+- ClickHouse Cloud is now available in **AWS Israel (Tel Aviv) — il-central-1**
+
 ## November 14, 2025 {#november-14-2025}
 - We’re excited to announce that **ClickHouse Cloud** is now available in **two additional public regions**:
   - **GCP Japan (asia-northeast1)**