feat: drop support of HA before 2021.7

set minimum homeassistant version in hacs.json

Author: IATkachenko

README.md

@@ -1,4 +1,4 @@
-![version_badge](https://img.shields.io/badge/recommended%20HA%20version-2021.7-red)
+![version_badge](https://img.shields.io/badge/minimum%20HA%20version-2021.7-red)
 ![Validate with hassfest](https://github.com/IATkachenko/HA-SleepAsAndroid/workflows/Validate%20with%20hassfest/badge.svg) 
 [![hacs_badge](https://img.shields.io/badge/HACS-Default-orange.svg)](https://github.com/custom-components/hacs) 
 [![Custom badge](https://img.shields.io/endpoint?color=orange&label=patreon&url=https%3A%2F%2Fshieldsio-patreon.vercel.app%2Fapi%2F%3Fusername%3DIATkachenko%26type%3Dpatrons)](https://www.patreon.com/IATkachenko)

custom_components/sleep_as_android/device_trigger.py

@@ -1,23 +1,15 @@
 import logging
 import voluptuous as vol
-from distutils.version import StrictVersion
 
 from homeassistant.const import (CONF_TYPE, CONF_PLATFORM, CONF_DOMAIN, CONF_DEVICE_ID, )
-from homeassistant.const import __version__ as homeassistant_version
 from homeassistant.components.homeassistant.triggers import event as event_trigger
 from homeassistant.core import HomeAssistant
+from homeassistant.components.device_automation import DEVICE_TRIGGER_BASE_SCHEMA as HA_TRIGGER_BASE_SCHEMA
 
 from .const import DOMAIN
 
-_LOGGER = logging.getLogger(__name__)
 
-if StrictVersion(homeassistant_version) >= StrictVersion("2021.7"):
-    from homeassistant.components.device_automation import DEVICE_TRIGGER_BASE_SCHEMA as HA_TRIGGER_BASE_SCHEMA
-else:
-    # TRIGGER_BASE_SCHEMA was renamed to DEVICE_TRIGGER_BASE_SCHEMA in 2021.7
-    _LOGGER.info("You are using old version (%s) of Home Assistant. Support of this version by the integration may be "
-                 "dropped.", homeassistant_version)
-    from homeassistant.components.device_automation import TRIGGER_BASE_SCHEMA as HA_TRIGGER_BASE_SCHEMA
+_LOGGER = logging.getLogger(__name__)
 
 # available at https://docs.sleep.urbandroid.org/services/automation.html#events
 TRIGGERS = [

hacs.json

@@ -1,4 +1,5 @@
  {
+  "homeassistant":  "2021.7.0",
   "name": "Sleep As Android",
   "render_readme": true,
   "zip_release": true,