[google_workspace] Set event categorization for Token data stream.

[piyush-elastic]

Type of change

• Enhancement

What does this PR do?

• Set event categorization for Token data stream.

Integration release 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

How to test this PR locally

• Clone integrations repo.
• Install elastic package locally.
• Start elastic stack using elastic-package.
• Move to integrations/packages/google_workspace directory.
• Run the following command to run tests.

elastic-package test

Related issues

• Relates [Google Workspace] Support All Event Types #4722

Screenshots

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

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Build stats

• Start Time: 2023-04-06T09:44:27.167+0000

• Duration: 28 min 56 sec

Test stats 🧪

Test	Results
Failed	0
Passed	112
Skipped	0
Total	112

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🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (14/14)	💚
Files	100.0% (14/14)	💚
Classes	100.0% (14/14)	💚
Methods	100.0% (179/179)	💚
Lines	94.469% (4560/4827)	👍 3.241
Conditionals	100.0% (0/0)	💚

[terrancedejesus]

Looks good from my side. IAM event category verified for token data stream.

[jamiehynds]

@P1llus would you mind taking quick look at this one? Need to ensure the categorisation is added prior to 8.8 to ensure new Workspace rules work.

[elasticmachine]

Package google_workspace - 2.5.1 containing this change is available at https://epr.elastic.co/search?package=google_workspace