Updating test case dependency (#253)

Author: markiantorno

pom.xml

@@ -17,7 +17,7 @@
 
     <properties>
         <hapi_fhir_version>5.0.0</hapi_fhir_version>
-        <validator_test_case_version>1.1.20</validator_test_case_version>
+        <validator_test_case_version>1.1.21</validator_test_case_version>
         <junit_jupiter_version>5.6.2</junit_jupiter_version>
         <maven_surefire_version>3.0.0-M4</maven_surefire_version>
         <jacoco_version>0.8.5</jacoco_version>