chore: update Github Actions badges syntax

[davidlj95]

Summary

GH Actions workflow status badge in webhook.md is broken

Also, the one in README.md is not using latest syntax for workflow status badges

Updating all of them to use latest syntax for GH Actions workflows syntax

Requirements (place an x in each [ ])

• [x] I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• [x] I've read and agree to the Code of Conduct.

[filmaj]

Thank you <3 !