Feature/db - Githubissues

Description

Currently, the ARC DB module only accepts a new security group ID and does not provide a way to add additional ingress or egress rules.

Please ensure that the following steps are completed before submitting the pull request:

[x] Code follows the Terraform best practices and style guidelines.
[x] Changes are appropriately documented, including any necessary updates to README or other documentation files.
[ ] Unit tests have been added or updated to cover the changes introduced by this pull request.
[x] Changes have been tested locally and verified to work as expected.
[x] The code has been reviewed to ensure it aligns with the project's goals and standards.
[ ] Dependencies and backward compatibility have been considered and addressed if applicable.

Please delete options that are not relevant.

[ ] Bug fix (non-breaking change which fixes an issue)
[x] New feature (non-breaking change which adds functionality)
[ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
[ ] Intermediate change (work in progress)