cisco_asa: add support for unspecified reason AAA user authentication rejection

[efd6]

What does this PR do?

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.

Author's Checklist

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How to test this PR locally

Related issues

• Fixes Pipeline fails to dissect Cisco ASA messages with ID 113005 #7566

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• Start Time: 2023-08-30T00:30:29.396+0000

• Duration: 17 min 0 sec

Test stats 🧪

Test	Results
Failed	0
Passed	23
Skipped	0
Total	23

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🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (1/1)	💚
Files	100.0% (1/1)	💚
Classes	100.0% (1/1)	💚
Methods	94.444% (17/18)	❕
Lines	69.824% (1548/2217)	❕
Conditionals	100.0% (0/0)	💚

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Pinging @elastic/security-external-integrations (Team:Security-External Integrations)

[chemamartinez]

LGTM

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Package cisco_asa - 2.20.4 containing this change is available at https://epr.elastic.co/search?package=cisco_asa