Update spring-security-bom to 5.7.7

Closes gh-2264

Author: marcusdacoregio

gradle/dependency-management.gradle

@@ -5,7 +5,7 @@ dependencyManagement {
 		mavenBom 'org.junit:junit-bom:5.8.2'
 		mavenBom 'org.springframework:spring-framework-bom:5.3.26'
 		mavenBom 'org.springframework.data:spring-data-bom:2021.2.9'
-		mavenBom 'org.springframework.security:spring-security-bom:5.7.6'
+		mavenBom 'org.springframework.security:spring-security-bom:5.7.7'
 		mavenBom 'org.testcontainers:testcontainers-bom:1.17.6'
 	}