Upgrade to springboot 1.5.20.RELEASE

Issue-ID: AAI-2349
Change-Id: Ic002dd0572c90ff7fd96b79bc33871bd42cef85a
Signed-off-by: Jimmy Forsyth <jf2512@att.com>
diff --git a/aai-schema-service/pom.xml b/aai-schema-service/pom.xml
index 8511b43..aff6445 100644
--- a/aai-schema-service/pom.xml
+++ b/aai-schema-service/pom.xml
@@ -37,7 +37,7 @@
 
         <aai.core.version>1.4.0</aai.core.version>
 
-        <spring.boot.version>1.5.19.RELEASE</spring.boot.version>
+        <spring.boot.version>1.5.20.RELEASE</spring.boot.version>
 
         <!-- Start of the jacoco plugin properties -->
         <sonar.language>java</sonar.language>