Update dependency ca.uhn.hapi.fhir:hapi-fhir-client to v8

Author: renovate[bot]

pom.xml

@@ -148,7 +148,7 @@
     <dependency>
       <groupId>ca.uhn.hapi.fhir</groupId>
       <artifactId>hapi-fhir-client</artifactId>
-      <version>7.6.1</version>
+      <version>8.2.1</version>
       <exclusions>
         <exclusion>
           <groupId>com.google</groupId>