add uptime kuma image

[gOOvER]

Description

Ping in uptime kuma works only on alpine.

All Submissions:

• [x] Have you ensured there aren't other open Pull Requests for the same update or change?
• [x] Have you created a new branch for your changes and PR from that branch and not from your master branch?

New Image Submissions:

1. [x] Have you added your image to the Github workflows?
2. [x] Have you updated the README list to contain your new image?

[parkervcp]

@gOOvER This failed to build when it tried to install cloudflared

[gOOvER]

@gOOvER This failed to build when it tried to install cloudflared

i'll check it, After Work. thank you