v0.21.0 (Added Gotify, Slack, HealthCheck, Pushover and Ntfy webhook notification channels)

What's New

• Add Gotify notifications via webhook by @svenvg93 in #1561
• Add Slack notification via webhook by @svenvg93 in #1522
• Add HealthCheck.io notification via webhook by @svenvg93 in #1567
• Add Pushover notification via webhook by @svenvg93 in #1574
• Add ntfy notification via webhook by @svenvg93 in #1579
• Add Ookla result URl to notification by @svenvg93 in #1615

What's Changed

• Add Placeholder text for notifications by @svenvg93 in #1570
• Fix notification layout by @svenvg93 in #1639
• Laravel 11.20.0 Shift by @alexjustesen in #1644
• Release v0.21.0 by @alexjustesen in #1648

Full Changelog: v0.20.9...v0.21.0