Send dataYaml (Rules Activation YAML) to Agent

[yashtewari]

What does this PR do?

The information in dataYaml var (which is functionally the Rules Activation YAML) is sent to cloudbeat via the Agent policy, where it can be consumed for cloudbeat to know which rules to run.

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

Within the package directory,

elastic-package build
elastic-package up

Create an Agent policy and view its full contents. Changes made to the dataYaml var will be reflected as data stream input in the Agent policy.

[elasticmachine]

💚 Build Succeeded

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Build stats

• Start Time: 2022-05-04T08:41:14.748+0000

• Duration: 16 min 43 sec

Test stats 🧪

Test	Results
Failed	0
Passed	1
Skipped	0
Total	1

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🌐 Coverage report

Name	Metrics % (covered/total)	Diff
Packages	100.0% (0/0)	💚
Files	100.0% (0/0)	💚 3.39
Classes	100.0% (0/0)	💚 3.39
Methods	33.333% (1/3)	👎 -54.93
Lines	100.0% (0/0)	💚 11.098
Conditionals	100.0% (0/0)	💚

[eyalkraft]

Looks good!
Please merge only after testing e2e :)

[eyalkraft]

CI fails because you also need to update the versions in the manifest of each integration.

[yashtewari]

Thanks Eyal!