Add glab role for macOS, Debiam distros, and Windows

roles/glab/tasks/Darwin.yaml

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+---
+- name: install homebrew package
+  homebrew:
+    name: glab
+    state: latest

roles/glab/tasks/Debian.yaml

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+---
+- set_fact:
+    glab: /usr/bin/glab
+- name: stat the executable
+  stat:
+    path: '{{glab}}'
+  register: stat_glab
+
+- name: get instlal version
+  when: stat_glab.stat.exists
+  command: '{{glab}} --version'
+  register: glab_version_output
+  changed_when: false
+
+- set_fact:
+    glab_version: '{{glab_version_output.stdout | replace("glab version ", "v")}}'
+    gitlab_api: 'https://gitlab.com/api/v4'
+    project_id: 'gitlab-org%2Fcli'
+
+- name: get list of gitlab releases
+  uri:
+    url:
+      '{{gitlab_api}}/projects/{{project_id}}/releases'
+  register: releases
+
+- set_fact:
+    latest: '{{releases.json[0]}}'
+    latest_version: '{{releases.json[0].tag_name}}'
+    query: >
+      [?contains(name, `glab`)] |
+      [?contains(name, `Linux`)] |
+      [?contains(name, `{{ansible_machine}}.deb`)] | [0]
+- set_fact:
+    asset: '{{latest.assets.links|json_query(query)}}'
+
+- name: create download directory
+  when: glab_version is not defined or glab_version != latest_version
+  tempfile:
+    state: directory
+    suffix: glab
+  register: tempdir
+
+- name: download .deb file
+  when: glab_version is not defined or glab_version != latest_version
+  get_url:
+    url: '{{asset.url}}'
+    dest: '{{tempdir.path}}/glab.deb'
+
+- name: install .deb file
+  when: glab_version is not defined or glab_version != latest_version
+  become: true
+  apt:
+    deb: '{{tempdir.path}}/glab.deb'
+
+- name: remove download directory
+  when: glab_version is not defined or glab_version != latest_version
+  file:
+    state: absent
+    path: '{{tempdir.path}}'
+
+- name: install zsh completions
+  when: glab_version is not defined or glab_version != latest_version
+  command:
+    glab completion -s zsh > ~/.local/share/zsh/site-functions/_glab

roles/glab/tasks/Windows.yaml

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+---
+- name: install chocolatey package
+  win_chocolatey:
+    name: glab
+    state: latest

roles/glab/tasks/main.yaml

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+---
+- include_tasks: '{{ansible_os_family}}.yaml'