locale_gen: enable tests for Arch Linux, make sure they don't even try to run on RHEL and Fedora VMs (#9796)

Enable locale_gen tests for Arch Linux, make sure they don't even try to run on RHEL and Fedora VMs.

tests/integration/targets/locale_gen/aliases

@@ -6,5 +6,7 @@ azp/posix/3
 destructive
 needs/root
 skip/aix
+skip/fedora
 skip/freebsd
 skip/macos
+skip/rhel

tests/integration/targets/locale_gen/tasks/main.yml

@@ -10,7 +10,7 @@
 
 - name: Bail out if not supported
   ansible.builtin.meta: end_play
-  when: ansible_distribution not in ('Ubuntu', 'Debian')
+  when: ansible_distribution not in ('Ubuntu', 'Debian', 'Archlinux')
 
 - name: Run tests auto-detecting mechanism
   ansible.builtin.include_tasks: basic.yml