Update EOSA details for Spark 3.4 runtime

Removed that we announced end of support last month (March 2025) because we did not. We are announcing now with these publications. EOS date remains the same, March 31st 2026.

Author: jeacla

articles/synapse-analytics/spark/apache-spark-34-runtime.md

@@ -14,7 +14,7 @@ ms.date: 11/17/2023
 
 > [!WARNING]
 > End of Support Announcement
-> - End of support was announced for Azure Synapse Runtime for Apache Spark 3.4 March 31, 2025.
+> - End of support announced for Azure Synapse Runtime for Apache Spark 3.4.
 > - Azure Synapse Runtime for Apache Spark 3.4 will be deprecated and disabled March 31, 2026. 
 
 Azure Synapse Analytics supports multiple runtimes for Apache Spark. This document covers the runtime components and versions for the Azure Synapse Runtime for Apache Spark 3.4.