Migrate shell to FQCN.

tasks/general/software/nix.yml

@@ -17,7 +17,7 @@
     nix_exe: ~/.deleteme.nix.sh
 
 - name: Install Nix
-  shell: "{{ item }}"
+  ansible.builtin.shell: "{{ item }}"
   loop:
     - "curl -L https://nixos.org/nix/install > {{ nix_exe }}"
     - "chmod 755 {{ nix_exe }}"
@@ -27,7 +27,7 @@
   become_user: "{{ user }}"
 
 - name: Install Nix Software
-  shell: "{{ item }}"
+  ansible.builtin.shell: "{{ item }}"
   loop:
     - "nix-env -iA nixpkgs.lbry" # Installs, but doesnt launch?
 #$ lbry