upgrade to latest graal version

ptrthomas · ptrthomas · commit 7107dca43590 · 2021-05-31T14:03:03.000+05:30
diff --git a/karate-core/pom.xml b/karate-core/pom.xml
@@ -12,7 +12,7 @@
     
     <properties>
         <antlr.version>4.7.1</antlr.version>
-        <graal.version>21.0.0.2</graal.version>
+        <graal.version>21.1.0</graal.version>
     </properties>
 
     <dependencies>
