feat: NCS-60 Stress Test (#3)

Added a stress test and configured the parameters to simulate a smaller load

---------

Co-authored-by: LQ63 <lkhermann@web.de>
Reviewed-on: #3

build.gradle

@@ -22,7 +22,11 @@ tasks.withType(io.gatling.gradle.GatlingRunTask) {
         "-Dgatling.authToken=${findProperty('authToken') ?: System.getenv('GATLING_AUTH_TOKEN') ?: ''}",
         "-Dhealthz.path=${findProperty('healthzPath') ?: '/health'}",
         "-DmaxUsers=${findProperty('maxUsers') ?: '10'}",
-        "-DrampDuration=${findProperty('rampDuration') ?: '60'}"
+        "-DrampDuration=${findProperty('rampDuration') ?: '60'}",
+        "-DstartUsers=${findProperty('startUsers') ?: '2'}",
+        "-DusersIncrement=${findProperty('usersIncrement') ?: '2'}",
+        "-Dsteps=${findProperty('steps') ?: '2'}",
+        "-DstepDuration=${findProperty('stepDuration') ?: '30'}"
     ]
 }