Add lstocchi as Podman reviewer

Luca remarkable knowledge of the Windows virtualization
platform would be beneficial for reviewing PRs and triaging
issues.

lstocchi contributions:
- podman-container-tools#28535
- podman-container-tools#27932
- podman-container-tools#27931
- podman-container-tools#27885
- podman-container-tools#27650
- podman-container-tools#26277
- podman-container-tools#26201
- podman-container-tools#20478

Signed-off-by: Mario Loriedo <mario.loriedo@gmail.com>

Author: l0rd

MAINTAINERS.md

@@ -34,6 +34,7 @@ Maintainers and Reviewers for the Skopeo and Buildah projects are found in their
 | Aditya Rajan      | [flouthoc](https://github.com/flouthoc)                  | Reviewer                         | [Red Hat](https://github.com/RedHatOfficial) |
 | Lewis Roy         | [ninja-quokka](https://github.com/ninja-quokka)          | Reviewer                         | Independent                                  |
 | Nicola Sella      | [inknos](https://github.com/inknos)                      | Reviewer                         | [Red Hat](https://github.com/RedHatOfficial) |
+| Luca Stocchi      | [lstocchi](https://github.com/lstocchi)                  | Reviewer                         | [Red Hat](https://github.com/RedHatOfficial) |
 | Dan Walsh         | [rhatdan](https://github.com/rhatdan)                    | Reviewer                         | [Red Hat](https://github.com/RedHatOfficial) |
 
 ## Alumni