Issue (#79) Terraform backend

[cuevas1876]

• Add required permissions for accessing dynamodb

Terraform backend - DynamoDB Permissions

Summary

• Add required permissions for accessing dynamodb

Drops existing execution policy for default AWS lambda dynamo db policy and add some additional permissions for accessing dynamodb.

Fixes # (issue)

Type of change

Please delete options that are not relevant.

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] This is a documentation update

How To Test

Checklist:

• [x] My code follows the style guidelines of this project and has no linting errors
• [x] I have performed a self-review of my code
• [x] I have commented my code, particularly in hard-to-understand areas - [ ] I have made corresponding changes to the documentation, including any applicable ADRs
• [x] My changes generate no new warnings - [ ] I have added tests that fail without these changes - [ ] New and existing tests (unit, integration, accessibility) pass locally - [ ] Documentation updated - [ ] If there are security concerns they are addressed or ticketed after being discussed

[codeclimate[bot]]

Code Climate has analyzed commit a86700a4 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (90% is the threshold).

This pull request will bring the total coverage in the repository to 100.0%.

View more on Code Climate.