adding database update

Author: WolfgangWaltenberger

ReleaseNotes

@@ -9,6 +9,7 @@ Release v3.1.1
   * Added final states information to output
   * Fix for pyslha 3.3.1
   * Small fixes in slha printer, pyhf interface
+  * Database extension: ATLAS-SUSY-2019-04 (UL), ATLAS-SUSY-2018-19 (EM)
 
 Release v3.1.0, Thu 07 Aug 2025
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