fix(deps): update Spring dependencies to version 6.2.18 for security improvements

Author: harshithad0703

pom.xml

@@ -229,17 +229,17 @@
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-core</artifactId>
-                <version>6.2.11</version>
+                <version>6.2.18</version>
             </dependency>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-beans</artifactId>
-                <version>6.2.11</version>
+                <version>6.2.18</version>
             </dependency>
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-web</artifactId>
-                <version>6.2.11</version>
+                <version>6.2.18</version>
             </dependency>
             <!-- Fix CVE-2020-15250: junit pulled by json-simple -->
             <dependency>