Update CSP mapping fields

[olegsu]

What does this PR do?

Update the mapping CSP uses based on elastic/cloudbeat#346

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• 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.

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• Start Time: 2022-09-12T10:29:36.982+0000

• Duration: 14 min 19 sec

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[eyalkraft]

Note that the change log and the manifest must be updated as well
see for example 015e88d

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[kfirpeled]

please place these fields' definition in ecs.yml
Also, consider adding the actual type they have, otherwise it uses the default which is keyword.

for example: event.created is of type date

[olegsu]

/test