hub update: reload crowdsec if only data files have changed

[mmetc]

From the cron scripts in both linux and freebsd:

upgraded=$(/usr/bin/cscli --error hub upgrade)
if [ -n "$upgraded" ]; then
    [...] reload crowdsec
fi

[github-actions]

@mmetc: There are no area labels on this PR. You can add as many areas as you see fit.

• /area agent
• /area local-api
• /area cscli
• /area appsec
• /area security
• /area configuration

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