packer-plugin-ebsdirect integration registration

#### Description

**packer-plugin-ebsdirect** - register a raw disk image as an AMI through the EBS direct APIs.

https://github.com/ivoronin/packer-plugin-ebsdirect

#### Integration Tier

Community.

#### Checklist
- [x] Has valid [`metadata.hcl`](https://github.com/hashicorp/integration-template) file in plugin repository.
- [x] Has added integration scripts [packer-plugin-scaffolding](https://github.com/hashicorp/packer-plugin-scoffolding) to plugin repository.
- [x] Has added top-level integration README.md file to plugin `docs` directory.
- [x] All plugins components have one README.md describing their usage.
- [x] Has a fully synced `.web-docs` directory ready for publishing to the integrations portal.

Start with the linked packer-plugin-ebsdirect repository, its metadata.hcl, integration scripts, docs/README.md, and .web-docs directory, then compare them with the integration-template and packer-plugin-scaffolding requirements. Done means the plugin satisfies the registration checklist and is ready for integration publishing.

Written by the indexing model from the issue text.