Add separate file for aur task & add rootless docker tasks

tasks/aur-package.yml

@@ -0,0 +1,22 @@
+- name: build package
+  command: 'makepkg --syncdeps --rmdeps --clean --noconfirm --force'
+  args:
+    chdir: '{{ aur_build_dir }}/{{ item.name }}'
+
+- name: retrieve package name
+  command: 'grep -oP "(?<=pkgname=).*" {{ aur_build_dir }}/{{ item.name }}/PKGBUILD'
+  register: pkg_name
+
+- name: retrieve package version
+  command: 'grep -oP "(?<=pkgver=).*" {{ aur_build_dir }}/{{ item.name }}/PKGBUILD'
+  register: pkg_version
+
+- name: retrieve package release
+  command: 'grep -oP "(?<=pkgrel=).*" {{ aur_build_dir }}/{{ item.name }}/PKGBUILD'
+  register: pkg_release
+
+- name: install package
+  become: true
+  pacman:
+    name: '{{ aur_build_dir }}/{{ item.name }}/{{ pkg_name.stdout }}-{{ pkg_version.stdout }}-{{ pkg_release.stdout }}-x86_64.pkg.tar.zst'
+    state: present