Add backport info

Author: Gary

hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/8_8_0/7386-icd10cmloader-missing-seventh-char-extensions.yaml

@@ -1,4 +1,5 @@
 ---
 type: fix
 issue: 7386
+backport: 8.4.2
 title: "A bug was fixed in Icd10CmLoader where applicable 7th character extensions were not being appended to all child codes."

hapi-fhir-docs/src/main/resources/ca/uhn/hapi/fhir/changelog/8_8_0/7394-valueset-code-case-sensitivity.yaml

@@ -1,6 +1,7 @@
 ---
 type: add
 issue: 7394
+backport: 8.4.2
 title: "A new setting JpaStorageSettings.setAllowDatabaseValidationOverride(boolean) has been added.
   When enabled, database-stored CodeSystem and ValueSet resources take precedence over built-in
   default profile validation resources. This allows user-defined terminology resources to override

hapi-fhir-validation/src/main/java/org/hl7/fhir/common/hapi/validation/support/ValidationSupportChain.java

@@ -17,7 +17,6 @@
 import ca.uhn.fhir.util.FhirTerser;
 import ca.uhn.fhir.util.Logs;
 import ca.uhn.fhir.util.StopWatch;
-import ca.uhn.fhir.util.UrlUtil;
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Strings;
 import jakarta.annotation.Nonnull;