Update Checkout Action

[dmohns]

Noticed some failing KiBot CI here: #72

Not entirely sure what the issue is. Somehow related to Git submodules. Updating the Github Checkout Action to latest, seems to resolve the issue.

[github-actions]

Diff between main (5931c7c) and fix-github-actions (8a0fc0c):

• bms-c1-diff_sch.pdf
• bms-c1-diff_pcb.pdf

[martinjaeger]

Ah nice, I wanted to look into this. More simple solution than I expected.

Anything missing (because it's still marked as draft)? Or can I merge?

[dmohns]

Ah nice, I wanted to look into this. More simple solution than I expected.

It was just a shot in the dark 🫣 But after thinking about it more, I think it's not really related to the issue 😂 I noticed https://github.com/LibreSolar/bms-c1/pull/72/changes#diff-07c05d1370d4481c104133c506303351931607ab52014238ef94f7629b525d87 this file might be causing issues.

Anything missing (because it's still marked as draft)? Or can I merge?

I don't think it hurts to merge it, as updating the checkout action should be an improvement anyways.