build(deps): bump helidonVersion in /hiero-dependency-versions

Bumps `helidonVersion` from 4.2.3 to 4.2.4.

Updates `io.helidon.logging:helidon-logging-jul` from 4.2.3 to 4.2.4

Updates `io.helidon.webserver:helidon-webserver-grpc` from 4.2.3 to 4.2.4

Updates `io.helidon.webserver:helidon-webserver` from 4.2.3 to 4.2.4

Updates `io.helidon.webclient:helidon-webclient-grpc` from 4.2.3 to 4.2.4

Updates `io.helidon.webclient:helidon-webclient` from 4.2.3 to 4.2.4

---
updated-dependencies:
- dependency-name: io.helidon.logging:helidon-logging-jul
  dependency-version: 4.2.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: io.helidon.webserver:helidon-webserver-grpc
  dependency-version: 4.2.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: io.helidon.webserver:helidon-webserver
  dependency-version: 4.2.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: io.helidon.webclient:helidon-webclient-grpc
  dependency-version: 4.2.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: io.helidon.webclient:helidon-webclient
  dependency-version: 4.2.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

hiero-dependency-versions/build.gradle.kts

@@ -14,7 +14,7 @@ dependencies {
 dependencies.constraints {
     val daggerVersion = "2.56.2"
     val grpcIoVersion = "1.74.0"
-    val helidonVersion = "4.2.3"
+    val helidonVersion = "4.2.5"
     // When Upgrading pbjVersion, also need to update pbjCompiler version on
     // block-node/protobuf-pbj/build.gradle.kts
     val pbjVersion = "0.11.9"