fix: add netdata release channel variable to common.yml and update netdata installation command

ansible/group_vars/all/common.yml

@@ -248,4 +248,6 @@ logrotate_entries:
     create_user: root
     create_group: root
 
+# https://gitlab.com/lydra/ansible-bootstrap/-/blob/main/ansible/tasks/netdata.yml
+netdata_release_channel: stable
 netdata_version: 2.5.2

ansible/tasks/netdata.yml

@@ -22,6 +22,7 @@
         /usr/local/bin/netdata-kickstart.sh
         --non-interactive
         --auto-update
+        --release-channel {{ netdata_release_channel }}
         --install-version {{ netdata_version }}
         --disable-telemetry
       register: netdata_install_result