fix: require openvox-agent instead of puppet-agent in puppet-initial (#172)

## Why

The estate migrated from Puppet to OpenVox. The `puppet-agent` package name no longer exists in the rpm-vendor repos, so kickstart installs of `puppet-initial` fail dependency resolution with "nothing provides puppet-agent", blocking host provisioning.

(Note: `openvox-agent` does `Provides: puppet-agent = 7`, so an alternative root cause is openvox repo priority/availability during the kickstart solve. This PR changes the explicit `Requires` as requested so puppet-initial depends on the package by its real name.)

## Changes

- Change puppet-initial's dependency from `puppet-agent` to `openvox-agent`.
- Bump el8/el9 build version `1.0.4` -> `1.0.5` so a new RPM is published (deploy dedup skips identical filenames).

## Validation

- `make test` — 72 passed.
- Local `nfpm pkg` build in the almalinux9-rpmbuilder image: RPM assembles as `puppet-initial-1.0.5-1.x86_64`, `rpm -qpR` reports `Requires: openvox-agent`.
- Confirmed `openvox-agent` is resolvable from the openvox el9 remote (7.35.0–7.37.2 available).

https://claude.ai/code/session_01JUoARVdmhxKQHyyyp1pxeT
Reviewed-on: #172
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>

rpms/puppet-initial/metadata.yaml

@@ -11,9 +11,9 @@ builds:
   release: '1'
   repository:
   - almalinux/el8
-  version: 1.0.4
+  version: 1.0.5
 - image: git.unkin.net/unkin/almalinux9-rpmbuilder:latest
   release: '1'
   repository:
   - almalinux/el9
-  version: 1.0.4
+  version: 1.0.5

rpms/puppet-initial/resources/nfpm.yaml

@@ -15,7 +15,7 @@ license: ${PACKAGE_LICENSE}
 disable_globbing: false
 
 depends:
-  - puppet-agent
+  - openvox-agent
 
 # Files to include in the package
 contents: