Fix ssm permissions to pull the AMI

[dakotabenjamin]

What type of PR is this? (check all applicable)

• 🍕 Feature
• [x ] 🐛 Bug Fix
• 📝 Documentation
• 🧑‍💻 Refactor
• ✅ Test
• [x ] 🤖 Build or CI
• ❓ Other (please specify)

Related Issue

Example: Fixes #6512 regression

Describe this PR

I had tested the PR using a role with admin level permissions, so I didn't catch the lack of permissions needed to GetParameters:

19:41:35Z *********: UPDATE_FAILED TaskingManagerLaunchTemplate: Resource handler returned message: "User: arn:aws:sts::************:assumed-role/*********************/backend-deploy is not authorized to perform: ssm:GetParameters on resource: arn:aws:ssm:*********:************:parameter/ami-01e5ff16fd6e8c542 because no identity-based policy allows the ssm:GetParameters action ...

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Review Guide

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Checklist before requesting a review

• 📖 Read the Tasking Manager Contributing Guide: https://github.com/hotosm/tasking-manager/blob/develop/docs/developers/contributing.md
• 📖 Read the HOT Code of Conduct: https://docs.hotosm.org/code-of-conduct
• 👷‍♀️ Create small PRs. In most cases, this will be possible.
• ✅ Provide tests for your changes.
• 📝 Use descriptive commit messages.
• 📗 Update any related documentation and include any relevant screenshots.
• 🔠 Does this PR introduce or change any environment variables? If so, make sure to specify this change in the description.

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[dakotabenjamin]

fyi @tsmock

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[tsmock]

That is funny; I didn't need it for my deployment. Although I was using the Terraform cloudformation_stack.