Upgrade Spring boot to the latest 2.* version (#295)

* Remove the explicit version for spring-jms

The Gradle Spring Boot plugin will keep the version consistent
with the rest of the Spring packages for us.

It will only do this if a version isn't specified however.

* Upgrade Spring boot to the latest 2.* version

This brings in a lot of fixes, however we'll still need to update
to the 3.* branch at some point.

Author: Adrian Clay

service/build.gradle

@@ -1,7 +1,7 @@
 plugins {
     id 'java'
-    id 'org.springframework.boot' version '2.6.8'
-    id 'io.spring.dependency-management' version '1.0.11.RELEASE'
+    id 'org.springframework.boot' version '2.7.18'
+    id 'io.spring.dependency-management' version '1.1.7'
     id "io.freefair.lombok" version "6.4.2"
     id "checkstyle"
     id "com.github.spotbugs" version "4.7.9"
@@ -25,7 +25,7 @@ dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-actuator'
     implementation 'org.springframework.boot:spring-boot-starter-web'
     implementation 'org.apache.qpid:qpid-jms-client:1.5.0'
-    implementation 'org.springframework:spring-jms:5.3.18'
+    implementation 'org.springframework:spring-jms'
     implementation 'ca.uhn.hapi.fhir:hapi-fhir-structures-dstu3:5.7.2'
     implementation 'uk.nhs.connect.iucds:iucds-schema:3.0.RC1.2'
     implementation 'jaxen:jaxen:1.2.0'