[Skiboot] [PATCH] opal-ci: Update checkout action for github actions

[Frederic Barrat]

Update for github actions required because Node 12 is no longer
supported. See
https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/

Signed-off-by: Frederic Barrat <fbarrat at linux.ibm.com>
---
 .github/workflows/docker-builds-checks.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/docker-builds-checks.yml b/.github/workflows/docker-builds-checks.yml
index 441d420e..b988f058 100644
--- a/.github/workflows/docker-builds-checks.yml
+++ b/.github/workflows/docker-builds-checks.yml
@@ -15,7 +15,7 @@ jobs:
         os: [ ubuntu-18.04, ubuntu-20.04, ubuntu-22.04, ubuntu-rolling, centos7, fedora36, fedora37, fedora-rawhide, docs ]
 
     steps:
-      - uses: actions/checkout at v2
+      - uses: actions/checkout at v3
 
       - name: Create Docker image
         run: |
-- 
2.39.0