PixelClock v1.1.5 - TZ / ESPHome 2025.9

What's Changed

• Documentation: Add HA TZ Tip by @andrewjswan in #40
• Add esp-idf package and test by @andrewjswan in #41

In Pre-Release

• 2025.9: Remove TZ package from configuration by @andrewjswan in #38
• ESP: Bump actions/setup-python from 5 to 6 by @dependabot[bot] in #37

Breaking changes

• Configuration changed, changes in packages.

Full Changelog: v1.1.5.19...v1.1.5.21