updating packages to add Archlinux specific

tasks/pkgs/bashls.yml

@@ -10,11 +10,18 @@
   ansible.builtin.set_fact:
     bashls:
       methods:
-        - source
+        Archlinux: [system, source]
+        default: [source]
+- name: Finalise bashls default facts
+  ansible.builtin.set_fact:
+    bashls:
+      methods: "{{ bashls.methods[os_family] | default(bashls.methods.default) }}"
       npm_pkg:
         name: bash-language-server
         global: true
         version: latest
+      pkgname:
+        Archlinux: bash-language-server
 # }}}
 - name: Configure bashls
   when: