Bump ca.uhn.hapi.fhir:hapi-fhir-structures-dstu3 in /service

Bumps ca.uhn.hapi.fhir:hapi-fhir-structures-dstu3 from 8.2.1 to 8.4.0.

---
updated-dependencies:
- dependency-name: ca.uhn.hapi.fhir:hapi-fhir-structures-dstu3
  dependency-version: 8.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

service/build.gradle

@@ -31,7 +31,7 @@ dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-web'
     implementation 'org.apache.qpid:qpid-jms-client:2.9.0'
     implementation 'org.springframework:spring-jms'
-    implementation 'ca.uhn.hapi.fhir:hapi-fhir-structures-dstu3:8.2.1'
+    implementation 'ca.uhn.hapi.fhir:hapi-fhir-structures-dstu3:8.4.0'
     implementation 'uk.nhs.connect.iucds:iucds-schema:4.0.RC1.0'
     implementation 'org.apache.xmlbeans:xmlbeans:4.0.0'
     implementation 'com.rabbitmq.jms:rabbitmq-jms:3.5.0'