ESPHome Version Notifier

Internal tool that receives notifications of new ESPHome releases and fans out the version update to downstream repositories.

The release workflow in esphome/esphome dispatches notify.yml once per release. Subscriber workflows in this repo react via workflow_run to do the actual work:

• update-firmware-repos.yml — opens version-bump PRs in the firmware repos listed in repos.json (stable releases only).
• trigger-ha-addon.yml — dispatches bump-version.yml in esphome/home-assistant-addon.
• trigger-schema.yml — dispatches generate-schemas.yml in esphome/esphome-schema.

Adding a new downstream target is a new subscriber workflow here — no changes needed in esphome/esphome.