Rename knowledge base file

[jrmolin]

Proposed commit message

[cisco_ftd] Rename system_info.md to service_info.md in knowledge base

• Original service_info.md file was committed with the wrong name.

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have verified that all data streams collect metrics or logs.
• I have added an entry to my package's changelog.yml file.
• I have verified that Kibana version constraints are current according to guidelines.
• I have verified that any added dashboard complies with Kibana's Dashboard good practices

Author's Checklist

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