feat: update incus build process

- ensure unkin-ca-certificates are installed
- find the default incus remote and use that for images
- dont set publish_remote_name
- build incus images for the base image
- build puppet-base image for incus only
- ensure builds are made with the `build` profile
- only build 9.5+ for incus

images/almalinux/8.10/base/builds

@@ -1,2 +1 @@
 docker
-incus

images/almalinux/8.10/base/variables.auto.pkrvars.hcl

@@ -1,7 +1,6 @@
 # almalinux/8.10/base
 deploy_files_from_image = true
 deploy_files_from_common = true
-use_incus = true
 packages = [
   "git",
   "jq",

images/almalinux/8.10/puppet-base/builds

@@ -1 +0,0 @@
-incus

images/almalinux/8.10/puppet-base/files/etc/yum.repos.d/puppet.repo

@@ -1,4 +0,0 @@
-[puppet]
-name=puppet repository
-baseurl=https://packagerepo.service.consul/puppet7/el/8-daily/x86_64/os/
-gpgkey=https://packagerepo.service.consul/puppet7/el/8-daily/x86_64/os/RPM-GPG-KEY-puppet-20250406

images/almalinux/8.10/puppet-base/variables.auto.pkrvars.hcl

@@ -1,16 +0,0 @@
-# almalinux/8.10/puppet-base
-incus_source = "almalinux8/base/latest"
-deploy_files_from_image = true
-use_incus = true
-packages = [
-  "puppet-agent",
-  "puppet-initial"
-]
-scripts_pre_packages = [
-  "dnf makecache",
-  "dnf update -y",
-]
-scripts_final = [
-  "dnf clean all",
-  "rm -rf /var/cache/dnf"
-]