chore(supported-environments): Add Postgres 17

Related-to: camunda/camunda-bpm-platform#4165

Author: psavidis

content/introduction/supported-environments.md

@@ -46,7 +46,7 @@ Run Camunda in every Java-runnable environment. Camunda is supported with our QA
 * MySQL  8.0
 * Oracle 19c / 23ai
 * IBM DB2 11.5 (excluding IBM z/OS for all versions)
-* PostgreSQL 14 / 15 / 16
+* PostgreSQL 14 / 15 / 16 / 17
 * Amazon Aurora PostgreSQL compatible with PostgreSQL 14 / 15
 * Microsoft SQL Server 2017 / 2019 / 2022 (see [Configuration Note]({{< ref "/user-guide/process-engine/database/mssql-configuration.md" >}}))
 * Microsoft Azure SQL with Camunda-supported SQL Server compatibility levels