Update dependency com.yegor256:xsline to v0.20.0

Author: renovate[bot]

pom.xml

@@ -105,7 +105,7 @@ SOFTWARE.
     <dependency>
       <groupId>com.yegor256</groupId>
       <artifactId>xsline</artifactId>
-      <version>0.19.0</version>
+      <version>0.20.0</version>
     </dependency>
     <dependency>
       <groupId>org.cactoos</groupId>