Update .github/workflows/css-color-5.yml

Co-authored-by: François Daoust <fd@tidoust.net>

Author: 2 people

.github/workflows/css-color-5.yml

@@ -12,7 +12,7 @@ jobs:
     name: Publish css-color-5
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - uses: w3c/spec-prod@v2
         with:
           TOOLCHAIN: bikeshed