[tanium] Ensure event.kind is correctly set for pipeline errors

[MakoWish]

What does this PR do?

Modify tanium integration to correctly set event.kind for pipeline errors and ensure error.message is an array.

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

• For sei: ensure packages set error.kind to "pipeline_error" in on_failure processor #6582

Screenshots

[efd6]

/test

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• Start Time: 2023-06-21T23:04:19.733+0000

• Duration: 23 min 15 sec

Test stats 🧪

Test	Results
Failed	0
Passed	42
Skipped	0
Total	42

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[efd6]

/test

[elasticmachine]

🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (6/6)	💚
Files	100.0% (7/7)	💚
Classes	100.0% (7/7)	💚
Methods	97.561% (80/82)	👍 0.662
Lines	92.012% (1774/1928)	👎 -3.246
Conditionals	100.0% (0/0)	💚

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💚 Build Succeeded

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Build stats

• Start Time: 2023-06-21T23:07:00.527+0000

• Duration: 24 min 26 sec

Test stats 🧪

Test	Results
Failed	0
Passed	42
Skipped	0
Total	42

🤖 GitHub comments

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To re-run your PR in the CI, just comment with:

• /test : Re-trigger the build.

[elasticmachine]

🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (6/6)	💚
Files	100.0% (7/7)	💚
Classes	100.0% (7/7)	💚
Methods	97.561% (80/82)	👍 2.799
Lines	92.012% (1774/1928)	👎 -3.459
Conditionals	100.0% (0/0)	💚

[elasticmachine]

Package tanium - 0.5.0 containing this change is available at https://epr.elastic.co/search?package=tanium