fix(bootstrap): exclude tldr from Ubuntu rolling extra packages

roles/bootstrap/vars/main.yml

@@ -273,7 +273,6 @@ bootstrap_ubuntu:
     - syslog-ng
     - systemd-zram-generator
     - tcpd
-    - tldr
     - traceroute
     - util-linux-extra
     - vim
@@ -281,7 +280,11 @@ bootstrap_ubuntu:
     - yq
     - zoxide
     - zstd
-  conditional: "{{ bootstrap_common_conditional }}"
+  conditional: >-
+    {{
+      (['tldr'] if (os_version | default('') | string | length) > 0 else [])
+      + bootstrap_common_conditional
+    }}
 
 bootstrap_archlinux:
   base: