add support for debian bullseye

defaults/main.yml

+default_repos:
+  debian:
+    bullseye:
+      debian:
+        url: "deb https://deb.debian.org/{{ ansible_distribution|lower }} {{ ansible_distribution_release|lower }} main contrib non-free"
+      update:
+        url: "deb https://deb.debian.org/{{ ansible_distribution|lower }} {{ ansible_distribution_release|lower }}-updates main contrib non-free"
+      security:
+        url: "deb https://security.debian.org/debian-security {{ ansible_distribution_release|lower }}-security main contrib non-free"
+      backports:
+        url: "deb https://deb.debian.org/{{ ansible_distribution|lower }} {{ ansible_distribution_release|lower }}-backports main"
+    buster:
+      debian:
+        url: "deb http://deb.debian.org/debian {{ ansible_distribution_release|lower }} main contrib non-free"
+      update:
+        url: "deb http://deb.debian.org/debian {{ ansible_distribution_release|lower }}-updates main contrib non-free"
+      security:
+        url: "deb http://deb.debian.org/debian-security/ {{ ansible_distribution_release|lower }}/updates main contrib non-free"
+      backports:
+        url: "deb http://http.debian.net/{{ ansible_distribution|lower }} {{ ansible_distribution_release|lower }}-backports main"
+
+

vars/main.yml

-
 packages:
   pkg:
     aptitude: {}
     "apt-transport-https": {}
-    bsdtar: {}
+    "libarchive-tools": {}
     bzip2: {}
     curl: {}
     dnsutils: {}
@@ -42,14 +41,4 @@ packages:
     vnstat: {}
     "xz-utils": {}
     zsh: {}
-  repos:
-    debian:
-      url: "deb http://deb.debian.org/debian {{ ansible_distribution_release|lower }} main contrib non-free"
-    update:
-      url: "deb http://deb.debian.org/debian {{ ansible_distribution_release|lower }}-updates main contrib non-free"
-    security:
-      url: "deb http://deb.debian.org/debian-security/ {{ ansible_distribution_release|lower }}/updates main contrib non-free"
-#    backports:
-#      url: "deb http://http.debian.net/{{ ansible_distribution|lower }} {{ ansible_distribution_release|lower }}-backports main"
-#      url: "deb http://http.debian.net/{{ ansible_distribution|lower }} {{ ansible_distribution_release|lower }}-backports main"
-
+  repos: "{{ default_repos[ansible_distribution|lower][ansible_distribution_release|lower] }}"