[bootbox] Add resources requests/limits to matchbox container (#2625)

## Summary

The `matchbox` container in
`packages/extra/bootbox/templates/matchbox/deployment.yaml` had no
`resources` block, triggering a `no CPU limit` conformance warning on
the `bootbox-matchbox` Deployment (PXE/iPXE provisioning service).

Bootbox is a standalone chart (no vendored upstream), so the values are
set directly in the template — same pattern as #2614 (csi-resizer) and
#2624 (s3manager).

- `limits` : `cpu: 200m`, `memory: 256Mi`
- `requests` : `cpu: 50m`, `memory: 128Mi`

Modest sizing since matchbox is a lightweight HTTP server serving iPXE
profiles and boot assets from ConfigMaps.

## Test plan

- [ ] `helm template bootbox . --namespace tenant-root --show-only
templates/matchbox/deployment.yaml --set _namespace.host=example.com
--set _cluster.solver=letsencrypt` from `packages/extra/bootbox/`
renders the `resources` block on the `matchbox` container (verified
locally)
- [ ] Re-run the conformance/lint tool — the `matchbox has no CPU limit`
warning should be gone
- [ ] CI passes

### Release note

\`\`\`release-note
Add CPU and memory requests/limits to the matchbox container of the
bootbox Deployment to clear the "no CPU limit" conformance warning.
\`\`\`

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Chores**
* Added Kubernetes resource limits and requests configuration to
optimize container resource allocation and improve deployment stability.

[![Review Change
Stack](https://storage.googleapis.com/coderabbit_public_assets/review-stack-in-coderabbit-ui.svg)](https://app.coderabbit.ai/change-stack/cozystack/cozystack/pull/2625)

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/extra/bootbox/templates/matchbox/deployment.yaml

@@ -29,6 +29,13 @@ spec:
           - name: http
             containerPort: 8080
             protocol: TCP
+        resources:
+          limits:
+            cpu: 200m
+            memory: 256Mi
+          requests:
+            cpu: 50m
+            memory: 128Mi
       volumes:
         - name: profiles-volume
           configMap: