BFD-3917: Enable Secure EFT Bucket Access for ISP

[malessi]

JIRA Ticket:
BFD-3917

What Does This PR Do?

This PR introduces new IAM resources allowing ISP to push files to BCDA via the prod EFT S3 Bucket.

What Should Reviewers Watch For?

If you're reviewing this PR, please check for these things in particular:

What Security Implications Does This PR Have?

Please indicate if this PR does any of the following:

• Adds any new software dependencies

• Modifies any security controls

• Adds new transmission or storage of data

• Any other changes that could possibly affect security?

• I have considered the above security implications as it relates to this PR. (If one or more of the above apply, it cannot be merged without the ISSO or team security engineer's (@sb-benohe) approval.)

• I have created tests to sufficiently ensure the reliability of my code, if applicable. If this is a modification to an existing piece of code, I have audited the associated tests to ensure everything works as expected.

Validation

Have you fully verified and tested these changes? Is the acceptance criteria met? Please provide reproducible testing instructions, code snippets, or screenshots as applicable.

• terraform applying these changes to prod eft, verifying that:
  • No errors or unexpected changes were made
  • ISP was able to assume the Role and was able to push a test file to the BCDA path