[Cloud Security] Update CloudFormation template

[orouz]

What does this PR do?

Updates the cloudformation template to use a new one. see elastic/cloudbeat#1070

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.

[elasticmachine]

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• Start Time: 2023-06-27T09:06:21.315+0000

• Duration: 13 min 20 sec

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Test	Results
Failed	0
Passed	4
Skipped	0
Total	4

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Name	Metrics % (covered/total)	Diff
Packages	100.0% (0/0)	💚
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Classes	100.0% (0/0)	💚
Methods	25.0% (2/8)	👎 -68.333
Lines	100.0% (0/0)	💚 2.959
Conditionals	100.0% (0/0)	💚

[amirbenun]

Since we are using preview versions this section is not required anymore (we tend to add it for major changes).
So in that case you can remove it or leave it, your call.
However, in order to test it you should bump the preview version.

[elasticmachine]

Package cloud_security_posture - 1.5.0-preview21 containing this change is available at https://epr.elastic.co/search?package=cloud_security_posture

[elasticmachine]

Package cloud_security_posture - 1.5.0-preview22 containing this change is available at https://epr.elastic.co/search?package=cloud_security_posture

[elasticmachine]

Package cloud_security_posture - 1.5.0-preview23 containing this change is available at https://epr.elastic.co/search?package=cloud_security_posture

[elasticmachine]

Package cloud_security_posture - 1.5.0-preview24 containing this change is available at https://epr.elastic.co/search?package=cloud_security_posture

[elasticmachine]

Package cloud_security_posture - 1.5.0-preview25 containing this change is available at https://epr.elastic.co/search?package=cloud_security_posture

[elasticmachine]

Package cloud_security_posture - 1.5.0-preview26 containing this change is available at https://epr.elastic.co/search?package=cloud_security_posture

[elasticmachine]

Package cloud_security_posture - 1.5.0-preview27 containing this change is available at https://epr.elastic.co/search?package=cloud_security_posture

[elasticmachine]

Package cloud_security_posture - 1.5.0 containing this change is available at https://epr.elastic.co/search?package=cloud_security_posture