chore(deps): update dependency io.rest-assured:rest-assured to v6

Author: renovate[bot]

pom.xml

@@ -26,7 +26,7 @@
         <flatten-maven-plugin.version>1.7.3</flatten-maven-plugin.version>
         <compiler-maven-plugin.version>3.14.1</compiler-maven-plugin.version>
         <testcontainers-keycloak.version>4.0.1</testcontainers-keycloak.version>
-        <rest-assured.version>5.5.6</rest-assured.version>
+        <rest-assured.version>6.0.0</rest-assured.version>
         <slf4j-simple.version>2.0.17</slf4j-simple.version>
         <jsoup.version>1.21.2</jsoup.version>
         <testcontainers.version>1.21.4</testcontainers.version>