feat: role does not work on el10, aarch64

[richm]

gfs2 support is being removed in el10.
Replacement TBD.

Role does not support aarch64

Signed-off-by: Rich Megginson [email protected]

[richm]

[citest]

[richm]

[citest]

[richm]

@spetrosi the job Get supported platforms is not working - meta/main.yml does not contain el10 - https://github.com/linux-system-roles/gfs2/pull/25/files#diff-92c74e80f0140aa012f39f58b4259dbe74401cdc9a0b84269295f480b9961809L22 - but the job adds the CentOS-Stream-10 - https://github.com/linux-system-roles/gfs2/actions/runs/10495811619/job/29082573459

##[debug]/usr/bin/bash -e /home/runner/work/_temp/8896fbe6-bd2d-4b7b-bfb3-1e3c44163f0b.sh
##[debug]Set output supported_platforms =  Fedora-39 Fedora-40 CentOS-Stream-8 CentOS-Stream-9 CentOS-Stream-10
##[debug]Finishing: Get supported platforms

running yq locally, it seems to be working
so I'm not sure what's going on here

[spetrosi]

I know why, the workflow checks out the main branch, and we need to check out PR's ref and get info about memory and supported platforms from there. I'll fix this.