Merge pull request containerd#10297 from dmcgowan/update-rockylinux-vagrant

Update rockylinux vagrant build

Author: dmcgowan

.github/workflows/ci.yml

@@ -528,7 +528,7 @@ jobs:
       matrix:
         box:
           - fedora/39-cloud-base
-          - rockylinux/8@9.0.0
+          - rockylinux/9@4.0.0
     env:
       BOX: ${{ matrix.box }}