feat: GTS use coreos matched kernel

[m2Giles]

GTS will use the matched kernel of whatever is the current coreos version. Additionally, now uses the convenience tags instead of version numbers for determining which version of fedora to build. Stages having beta builds for F41. Deprecate aurora gts

[m2Giles]

This is now green. Last bits are updating the just scripts and updating the README.md.

Our condition checks should move to

main, bluefin, gts
main, bluefin-dx, gts
nvidia, bluefin-dx, gts
main, aurora, stable
main,  aurora,-dx stable
nvidia, aurora-dx, stable
main, bluefin, stable
main, bluefin-dx, stable
nvidia, bluefin-dx, stable
main, bluefin, latest
main, aurora, latest

[m2Giles]

While Nvidia is being installed using the same method as bazzite/hwe a user is reporting an issue with driver mismatch.

[m2Giles]

Nvidia issue was due to an update in between akmods build and the image build.

[p5]

LGTM!

[ethanjli]

Question: in line 243 of this file (i.e. within the "$IS_COREOS" == "true" branch), there is no BUILD_TAGS+=("stable") line. Was this omission intentional?

In my fork of the bluefin repo (which is now just a layer of changes over Aurora) I found I had to add that line in my copy of the reusable-build-iso workflow - without it, the "Build Image" step errored out on pushes to the main branch, because the BUILD_TAGS array was empty there.