[Pulse Connect Secure] Fix minor issues with grok patterns

[legoguy1000]

What does this PR do?

minor tweaks to grok pattern to account for new logs

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

• [ ]

How to test this PR locally

Related issues

• Close Issues with Pulse Connect Secure integration #4117

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• Start Time: 2022-09-04T21:57:25.176+0000

• Duration: 17 min 17 sec

Test stats 🧪

Test	Results
Failed	0
Passed	10
Skipped	0
Total	10

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[efd6]

/test

[legoguy1000]

@efd6 updated

[efd6]

/test

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🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (1/1)	💚
Files	100.0% (1/1)	💚 2.896
Classes	100.0% (1/1)	💚 2.896
Methods	100.0% (13/13)	💚 10.119
Lines	90.984% (111/122)	👎 -0.769
Conditionals	100.0% (0/0)	💚