Downgraded jUnit given SNAP errors

SNAP complication had errors on snapcraft
Looked to be related to jUnit so this is a test
Moved from v6.0.0-M1 -> 5.13.1

Author: frossm

pom.xml

@@ -3,7 +3,7 @@
 
 	<groupId>org.fross</groupId>
 	<artifactId>rpncalc</artifactId>
-	<version>5.8.4</version>
+	<version>5.8.5</version>
 	<packaging>jar</packaging>
 
 	<name>rpncalc</name>
@@ -272,7 +272,7 @@
 		<dependency>
 			<groupId>org.junit.jupiter</groupId>
 			<artifactId>junit-jupiter</artifactId>
-			<version>6.0.0-M1</version>
+			<version>5.13.1</version>
 			<scope>test</scope>
 		</dependency>
 

snap/snapcraft.yaml

@@ -1,5 +1,5 @@
 name: rpncalc
-version: '5.8.4'
+version: '5.8.5'
 summary: The command line Reverse Polish Notation (RPN) calculator
 description: |
   RPNCalc is an easy to use command line based Reverse Polish