fix(deps): update dependency org.codehaus.groovy:groovy to v3.0.20

Author: renovate[bot]

backend/pom.xml

@@ -20,7 +20,7 @@
 		<!-- backend dependencies -->
 		<rest-assured.version>5.3.2</rest-assured.version>
 		<postgresql.version>42.6.0</postgresql.version>
-		<groovy.version>3.0.19</groovy.version>
+		<groovy.version>3.0.20</groovy.version>
 	</properties>
 
 	<dependencies>