Merge pull request #262 from uPortal-Project/renovate/org.slf4j-log4j-over-slf4j-2.x

fix(deps): update dependency org.slf4j:log4j-over-slf4j to v2

Author: ChristianMurphy

pom.xml

@@ -137,7 +137,7 @@
             <dependency>
                 <groupId>org.slf4j</groupId>
                 <artifactId>log4j-over-slf4j</artifactId>
-                <version>1.7.36</version>
+                <version>2.0.3</version>
             </dependency>
             <dependency>
                 <groupId>net.sf.ehcache</groupId>