Java: Add release notes for release 5.32.0 (#2526)

* Add new release notes

* fix: Changes from lint

---------

Co-authored-by: SAP Cloud SDK Bot <cloudsdk@sap.com>
Co-authored-by: sap-cloud-sdk-bot[bot] <274190970+sap-cloud-sdk-bot[bot]@users.noreply.github.com>

Author: sap-cloud-sdk-bot[bot]

docs-java/release-notes/release-notes-30-to-44.mdx

@@ -1,3 +1,11 @@
+## 5.32.0 - July 02, 2026
+
+[All Release Changes](https://github.com/SAP/cloud-sdk-java/releases/tag/rel%2F5.32.0)
+
+### 📈 Improvements
+
+- Further improve the automated certificate rotation support for the credential type `X509_ATTESTED`.
+
 ## 5.31.0 - June 10, 2026
 
 [All Release Changes](https://github.com/SAP/cloud-sdk-java/releases/tag/rel%2F5.31.0)