Revert Spring Security dependency to latest 5.x.y

(cherry picked from commit 8c4eaca)

Author: bencomp

pom.xml

@@ -212,7 +212,7 @@
         <dependency>
             <groupId>org.springframework.security</groupId>
             <artifactId>spring-security-core</artifactId>
-            <version>6.4.1</version>
+            <version>5.8.16</version>
             <exclusions>
                 <exclusion>
                     <groupId>org.springframework</groupId>