Merge pull request #14 from microsoft/dependabot/maven/java/Java-Webapp/org.springframework-spring-core-5.3.20

Bump spring-core from 5.3.18 to 5.3.20 in /java/Java-Webapp

java/Java-Webapp/pom.xml

@@ -9,7 +9,7 @@
 	<name>adal4jsample</name>
 	<url>http://maven.apache.org</url>
 	<properties>
-		<spring.version>5.3.18</spring.version>
+		<spring.version>5.3.20</spring.version>
 	</properties>
 
 	<dependencies>