Upgrade to Slf4j 1.7.32.

Closes #1505

Author: schauder

parent/pom.xml

@@ -124,7 +124,7 @@
 		<rxjava-reactive-streams>1.2.1</rxjava-reactive-streams>
 		<rxjava2>2.2.21</rxjava2>
 		<rxjava3>3.0.13</rxjava3>
-		<slf4j>1.7.26</slf4j>
+		<slf4j>1.7.32</slf4j>
 		<spring>5.3.9</spring>
 		<spring-hateoas>1.4.0-SNAPSHOT</spring-hateoas>
 		<spring-plugin>2.0.0.RELEASE</spring-plugin>