Add CI to build SVGs with images embedded

[Rongronggg9]

It should help fix the "CORS" (actually CSP, not CORS) issue mentioned in #30 (comment).

Preview: https://github.com/Rongronggg9/github-profile-achievements/tree/dist

It is believed to be the only solution to work around the CSP issue since it is chosen by opencollective to render user avatars in contributor tables.

[Schweinepriester]

Thank you for the PR and the inspiration!
But it will probably some time before I merge this if at all, because the proper SVGs (not the test ones) will take quiet a bit of hand massaging to make them nice. Because of this so far I had thought about doing the base64 conversion "manually" or maybe linking to the images in this repo (unlikely).
But maybe I'll do an intermediate step and having an action like this do the last one… we'll see!

[Rongronggg9]

Sure. Looking forward to the finished SVGs. The current "testing" ones are already impressive for me :)

[paulbull704]

I do not know whats going on here.paul

[Lymengchun]

good

[akirataguchi115]

@Schweinepriester Any chance to remove and block some of these messages and users? 🥲

[CHARLLYS97]

O que está havendo ?

[arifpro]

seems like everything good