Update slf4j-api to 1.7.31 (#939)

Author: injectives

pom.xml

@@ -92,7 +92,7 @@
       <dependency>
         <groupId>org.slf4j</groupId>
         <artifactId>slf4j-api</artifactId>
-        <version>1.7.30</version>
+        <version>1.7.31</version>
       </dependency>
 
       <!-- Test dependencies -->