build(deps): bump org.hiero.gradle.build from 0.2.1 to 0.3.0

Bumps org.hiero.gradle.build from 0.2.1 to 0.3.0.

---
updated-dependencies:
- dependency-name: org.hiero.gradle.build
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

settings.gradle.kts

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: Apache-2.0
 plugins {
-    id("org.hiero.gradle.build") version "0.2.1"
+    id("org.hiero.gradle.build") version "0.3.0"
     `kotlin-dsl` apply false
 }