fix(security): update dependency org.assertj:assertj-core to v3.27.7 [security] (#1700)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

tools/flagd-core/pom.xml

@@ -97,7 +97,7 @@
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
-            <version>3.27.3</version>
+            <version>3.27.7</version>
             <scope>test</scope>
         </dependency>
     </dependencies>