Update libraries for stock_jdbc tests

Also replace hamcrest matchers with assertj

Author: matriv

tests/client_tests/stock_jdbc/build.gradle

@@ -8,10 +8,10 @@ repositories {
 }
 
 dependencies {
-    testImplementation 'junit:junit:4.12'
+    testImplementation 'junit:junit:4.13.2'
+    testImplementation 'org.assertj:assertj-core:3.27.3'
+    testImplementation 'io.crate:crate-testing:0.12.1'
     testImplementation 'org.postgresql:postgresql:42.7.4'
-    testImplementation 'org.hamcrest:hamcrest:2.1'
-    testImplementation 'io.crate:crate-testing:0.11.1'
 }
 
 test {