Squid module does not parse logs

Elastic Stack Beats
11

modules.d/squid.yml:

# Module: squid
# Docs: https://www.elastic.co/guide/en/beats/filebeat/main/filebeat-module-squid.html

- module: squid
  log:
    enabled: true

    # Set which input to use between udp (default), tcp or file.
    # var.input: udp
    var.input: file
    # var.syslog_host: localhost
    # var.syslog_port: 9520
    # Set paths for the log files when file input is used.
    var.paths: ["/var/log/squid/access.log"]

    # Toggle output of non-ECS fields (default true).
    # var.rsa_fields: true

    # Set custom timezone offset.
    # "local" (default) for system timezone.
    # "+02:00" for GMT+02:00
    # var.tz_offset: local