Install latest pynvim on Debian based systems

Fixes #21

roles/neovim/tasks/Debian.yaml

@@ -9,14 +9,19 @@
     name: neovim
     state: absent
 
-- name: install python provider apt package
+- name: install gnu stow for managing tar.gz package
   become: true
   apt:
     name:
-      - python3-neovim
       - stow
     state: latest
 
+- name: install python provider pip package
+  become: true
+  pip:
+    name: pynvim
+    state: latest
+
 - name: stat installed executable
   stat:
     path: /usr/local/bin/nvim