Add pg 14 retirement details

Author: jonels-msft

articles/postgresql/concepts-version-policy.md

@@ -43,6 +43,7 @@ The table below provides the retirement details for PostgreSQL major versions. T
 | [PostgreSQL 11](https://www.postgresql.org/about/news/postgresql-11-released-1894/) | [Features](https://www.postgresql.org/docs/11/release-11.html) | July 24, 2019	| November 9, 2023
 | [PostgreSQL 12](https://www.postgresql.org/about/news/postgresql-12-released-1976/) | [Features](https://www.postgresql.org/docs/12/release-12.html) | Sept 22, 2020 	| November 14, 2024
 | [PostgreSQL 13](https://www.postgresql.org/about/news/postgresql-13-released-2077/) | [Features](https://www.postgresql.org/docs/13/release-13.html) | May 25, 2021 	| November 13, 2025
+| [PostgreSQL 14](https://www.postgresql.org/about/news/postgresql-14-released-2318/) | [Features](https://www.postgresql.org/docs/14/release-14.html) | October 1, 2021 | November 12, 2026
 
 ## Retired PostgreSQL engine versions not supported in Azure Database for PostgreSQL