Fix artifact source globbing for extract (#42484)

Fix artifact source globbing for extract (#42484)

* Fix artifact source globbing for extract
There was a change the extract AzDO task that fixed a bug where it appeared to be matching some subpaths without globbing.

If you specified foo/x* it would apparently match subpaths of foo. Runtime was relying on this behavior, as the artifact target directory would implicitly get a subdirectory which was the artifact name, but not including that artifact name in the globbing pattern.

Fix this by including ** before the archive.

* Update download-artifact-step.yml