Roles with no permission are auto migrated to Administrator roles

[MikeAlhayek]

Fix #17216

[MikeAlhayek]

/backport to release/2.1

[github-actions]

Started backporting to release/2.1: https://github.com/OrchardCMS/OrchardCore/actions/runs/12301028820

[github-actions]

@MikeAlhayek backporting to release/2.1 failed, the patch most likely resulted in conflicts:

$ git am --3way --empty=keep --ignore-whitespace --keep-non-patch changes.patch

Applying: Roles with no permission are auto migrated to Administrator roles Fix #17216
Applying: exclude 2.1.3
Using index info to reconstruct a base tree...
M	mkdocs.yml
Falling back to patching base and 3-way merge...
Auto-merging mkdocs.yml
CONFLICT (content): Merge conflict in mkdocs.yml
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
hint: When you have resolved this problem, run "git am --continue".
hint: If you prefer to skip this patch, run "git am --skip" instead.
hint: To restore the original branch and stop patching, run "git am --abort".
hint: Disable this message with "git config advice.mergeConflict false"
Patch failed at 0002 exclude 2.1.3
Error: The process '/usr/bin/git' failed with exit code 128

Please backport manually!