release: v1.30.0

Date the CHANGELOG [Unreleased] section as [1.30.0] - 2026-06-12 so the
release CI extracts the correct notes for the v1.30.0 tag. Ships native
Windows ARM64 builds (Snapdragon-class, signed zips + MSIs) and portable
Linux binaries (glibc 2.28 baseline via manylinux_2_28) that run out of
the box on Raspberry Pi OS and Amazon Linux 2023.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: prmoore77

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes to GizmoSQL will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [1.30.0] - 2026-06-12
 
 ### Added