[bootlin/training-materials] 7728ec: github: bump to checkout at v3 version

[Clément Léger]

  Branch: refs/heads/master
  Home:   https://github.com/bootlin/training-materials
  Commit: 7728ec3bee8a214e867987b8b0e5c2a583019682
      https://github.com/bootlin/training-materials/commit/7728ec3bee8a214e867987b8b0e5c2a583019682
  Author: Clément Léger <clement.leger at bootlin.com>
  Date:   2022-05-23 (Mon, 23 May 2022)

  Changed paths:
    M .github/workflows/training-materials.yml

  Log Message:
  -----------
  github: bump to checkout at v3 version

There seems to be a bug with v2 action when used with Ubuntu 20-04 [1].
Try to bump to v3 to fix that.

[1] https://github.com/actions/checkout/issues/760

Signed-off-by: Clément Léger <clement.leger at bootlin.com>


  Commit: 720aa3d8078aeff0b985fca7318791e40bc80a73
      https://github.com/bootlin/training-materials/commit/720aa3d8078aeff0b985fca7318791e40bc80a73
  Author: Clément Léger <clement.leger at bootlin.com>
  Date:   2022-05-23 (Mon, 23 May 2022)

  Changed paths:
    M .github/actions/build-material-action/Dockerfile
    A .github/actions/build-material-action/build_materials.sh
    M .github/workflows/training-materials.yml

  Log Message:
  -----------
  github: add workaround for checkout issue

There seems to be a bug with v2 action when used with Ubuntu 20-04 [1].
Unfortunately, there is no solution yet and a worarkound should be
used.

[1] https://github.com/actions/checkout/issues/760

Signed-off-by: Clément Léger <clement.leger at bootlin.com>


Compare: https://github.com/bootlin/training-materials/compare/9103e0af579c...720aa3d8078a