Merge pull request containers#18532 from vrothberg/template

[CI:DOCS] issue template: mention `su`

.github/ISSUE_TEMPLATE/bug_report.yaml

@@ -70,7 +70,7 @@ body:
     id: privileged_rootless
     attributes:
       label: Privileged Or Rootless
-      description: Are you running the containers as privileged or non-root user?
+      description: Are you running the containers as privileged or non-root user?  Note that using `su` or `sudo` does not establish a proper login session required for running Podman as a non-root user.  Please refer to the [troubleshooting guide](https://github.com/containers/podman/blob/main/troubleshooting.md#solution-28) for alternatives.
       options:
         - Privileged
         - Rootless