docs: fix cloud formation resources

[njtran]

Fixes #N/A

Description
We orchestrate releases by pushing tags, which triggers a github action to create a PR to modify the docs. This means that referencing the raw github files at the tagged commit for the docs folder will have missed any docs updates added during the release automation. This updates it to use preview so that the cloud formation references what was staged for each release, which was eventually brought in through release automation.

How was this change tested?
Looking at the links manually, seeing CFN updates for v1 that were expected only in the preview link

Does this change impact docs?

• Yes, PR includes docs updates
• Yes, issue opened: #
• No

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

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[coveralls]

Pull Request Test Coverage Report for Build 10408510517

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 79.264%

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Totals
Change from base Build 10407691741:	0.0%
Covered Lines:	5921
Relevant Lines:	7470

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💛 - Coveralls

[jmdeal]

LGTM 🚀