ci: update Gatling simulation configuration and dependencies

Author: Raouf25

loading/pom.xml

@@ -46,7 +46,7 @@
                 <artifactId>scala-maven-plugin</artifactId>
                 <version>4.8.1</version>
                 <configuration>
-                    <scalaVersion>2.13.11</scalaVersion>
+                    <scalaVersion>2.13.12</scalaVersion>
                 </configuration>
                 <executions>
                     <execution>