Add new csp rule templates to the cloud-security-posture integration

[uri-weisman]

What does this PR do?

Adds new csp rule templates

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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• Start Time: 2022-06-08T13:34:31.739+0000

• Duration: 15 min 3 sec

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Name	Metrics % (covered/total)	Diff
Packages	100.0% (0/0)	💚
Files	100.0% (0/0)	💚 3.343
Classes	100.0% (0/0)	💚 3.343
Methods	33.333% (1/3)	👎 -56.243
Lines	100.0% (0/0)	💚 10.609
Conditionals	100.0% (0/0)	💚

[eyalkraft]

Nice!
Make sure to promote the new version of the integration (@jeniawhite created a relevant readme)

[eyalkraft]

Follow up @uri-weisman:
Let's change the required stack version for the package since these new rules will only be supported by cloudbeat 8.4 as you said.
Edit:
Since our constraint is on cloudbeat (and the agent) we need to understand how to reflect that in the integration package as we think the integration package constraint might only refer to Kibana, Which can work with older versions of the Elastic agent too (support matrix):

Elastic Agent is compatible with stack components either on this version or newer versions.