update camunda and spring to latest versions

Updated camunda to 7.14 and updated spring boot camunda to 3.4
Started to clean up duplicate maven dependencies

Issue-ID: SO-3521
Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
Change-Id: Ic65b04772b91dd989e41d6b6b93872978bc4e4e2
diff --git a/adapters/mso-vfc-adapter/pom.xml b/adapters/mso-vfc-adapter/pom.xml
index eae6745..d181e10 100644
--- a/adapters/mso-vfc-adapter/pom.xml
+++ b/adapters/mso-vfc-adapter/pom.xml
@@ -109,5 +109,9 @@
       <artifactId>spring-boot-configuration-processor</artifactId>
       <optional>true</optional>
     </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-validation</artifactId>
+    </dependency>
   </dependencies>
 </project>