automation: Update docker-telegraf Docker tag to v1.30

This MR contains the following updates:

Package	Update	Change
docker-telegraf	minor	1.29 -> 1.30

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roles/docker_telegraf/defaults/main.yml

@@ -19,7 +19,7 @@
 docker_telegraf_install_location: /var/srv/telegraf
 docker_telegraf_config_location: "{{ docker_telegraf_install_location }}/conf"
 # renovate: depName=docker.io/library/telegraf
-docker_telegraf_version: "1.29"
+docker_telegraf_version: "1.30"
 
 docker_telegraf_influxdb_endpoints:
   - influxdb.example.com