Fields are not extracted after upgrading 22.x (log format - rfc5424)

[ZachChristensen28]

Describe the bug Fields and sourcetypes are not automatically extracted by the addon.

example filterlog event not extracting:

<134>1 2022-08-17T22:20:59-06:00 opn1 filterlog 73001 - [meta sequenceId="243"] 63,,,bc1285a2efae900d70025e79cb4e87e2,vmx0,match,pass,out,4,0x0,,64,20658,0,none,17,udp,62,192.168.24.99,10.0.10.2,57715,53,42

To Reproduce Steps to reproduce the behavior:

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2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior A clear and concise description of what you expected to happen.

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Version (please complete the following information):

• Splunk Version: 9.0.0
• OPNsense Version: 22.7
• OPNsense Plugin Version (if applicable): N/a
• TA-opnsense Version: 1.5.2

Additional context

This only seems to occur when the logging format is set to rfc5424. A quick fix can be unchecking the rfc5424 format option.