Update test dependencies (#2153)

- Assertj: 3.26.3
- Awaitility: 4.2.2
- Sardine: 5.12
- Jetty: 12.0.5
- Selenium: 4.26.0

gradle.properties

@@ -1,10 +1,10 @@
 aspectjVersion=1.9.22.1
-assertjVersion=3.23.1
-awaitilityVersion=4.2.0
+assertjVersion=3.26.3
+awaitilityVersion=4.2.2
 
-lookfirstSardineVersion=5.7
-jettyVersion=12.0.4
-seleniumVersion=4.18.0
+lookfirstSardineVersion=5.12
+jettyVersion=12.0.5
+seleniumVersion=4.26.0
 mockserverNettyVersion=5.15.0
 
 labkeySchemasTestVersion=24.11-SNAPSHOT