Add EBS volume copy encryption and sharing support

[ElijahQuinones]

Rollback Plan

If a change needs to be reverted, we will publish an updated version of the library.

Changes to Security Controls

Are there any changes to security controls (access controls, encryption, logging) in this pull request? If so, explain.
Adds additional encryption options for Volume Clones.

Description

This changes adds the new volume clones encryption parameters as well as cross account clones and volume sharing.

Relations

N/A

References

New AWS docs regarding this change https://aws.amazon.com/about-aws/whats-new/2026/09/ebs-volume-clones-cross-account-copy/

Output from Acceptance Testing

% make testacc TESTS='TestAccEC2(EBSVolumeCopy_|EBSVolumeDataSource_basic$)' PKG=ec2                                                                                        
..w.

  AWS_PROFILE=*redacted* \                                                                                                                                                                            
  AWS_ALTERNATE_PROFILE=*redacted* \
  AWS_DEFAULT_REGION=us-west-2 \
  make testacc TESTS='TestAccEC2(EBSVolumeCopy_|EBSVolumeDataSource_basic)' PKG=ec2
make: Verifying source code with gofmt...
==> Checking that code complies with gofmt requirements...
make: Validating schemas
ok      github.com/hashicorp/terraform-provider-aws/internal/provider/sdkv2     (cached)
ok      github.com/hashicorp/terraform-provider-aws/internal/provider/framework (cached)
make: Running acceptance tests on branch: 🌿 main 🌿...
TF_ACC=1 go1.26.6 test ./internal/service/ec2/... -v -count 1 -parallel 20 -run='TestAccEC2(EBSVolumeCopy_|EBSVolumeDataSource_basic)'  -timeout 360m -vet=off -buildvcs=false
2026/09/10 00:06:26 Creating Terraform AWS Provider (SDKv2-style)...
2026/09/10 00:06:26 Initializing Terraform AWS Provider (SDKv2-style)...
=== RUN   TestAccEC2EBSVolumeCopy_basic
=== PAUSE TestAccEC2EBSVolumeCopy_basic
=== RUN   TestAccEC2EBSVolumeCopy_kmsKeyAlias
=== PAUSE TestAccEC2EBSVolumeCopy_kmsKeyAlias
=== RUN   TestAccEC2EBSVolumeCopy_shared
=== PAUSE TestAccEC2EBSVolumeCopy_shared
=== RUN   TestAccEC2EBSVolumeCopy_disappears
=== PAUSE TestAccEC2EBSVolumeCopy_disappears
=== RUN   TestAccEC2EBSVolumeCopy_updateSize
=== PAUSE TestAccEC2EBSVolumeCopy_updateSize
=== RUN   TestAccEC2EBSVolumeCopy_updateIops
=== PAUSE TestAccEC2EBSVolumeCopy_updateIops
=== RUN   TestAccEC2EBSVolumeCopy_updateThroughput
=== PAUSE TestAccEC2EBSVolumeCopy_updateThroughput
=== RUN   TestAccEC2EBSVolumeCopy_updateVolumeType
=== PAUSE TestAccEC2EBSVolumeCopy_updateVolumeType
=== RUN   TestAccEC2EBSVolumeCopy_tags
=== PAUSE TestAccEC2EBSVolumeCopy_tags
=== RUN   TestAccEC2EBSVolumeCopy_invalidConfiguration
=== PAUSE TestAccEC2EBSVolumeCopy_invalidConfiguration
=== RUN   TestAccEC2EBSVolumeDataSource_basic
=== PAUSE TestAccEC2EBSVolumeDataSource_basic
=== CONT  TestAccEC2EBSVolumeCopy_basic
=== CONT  TestAccEC2EBSVolumeCopy_updateThroughput
=== CONT  TestAccEC2EBSVolumeCopy_tags
=== CONT  TestAccEC2EBSVolumeCopy_updateSize
=== CONT  TestAccEC2EBSVolumeCopy_updateVolumeType
=== CONT  TestAccEC2EBSVolumeCopy_kmsKeyAlias
=== CONT  TestAccEC2EBSVolumeCopy_invalidConfiguration
=== CONT  TestAccEC2EBSVolumeCopy_disappears
=== CONT  TestAccEC2EBSVolumeCopy_updateIops
=== CONT  TestAccEC2EBSVolumeCopy_shared
=== CONT  TestAccEC2EBSVolumeDataSource_basic
--- PASS: TestAccEC2EBSVolumeCopy_invalidConfiguration (15.29s)
--- PASS: TestAccEC2EBSVolumeDataSource_basic (58.24s)
--- PASS: TestAccEC2EBSVolumeCopy_kmsKeyAlias (86.86s)
--- PASS: TestAccEC2EBSVolumeCopy_disappears (90.33s)
--- PASS: TestAccEC2EBSVolumeCopy_shared (118.43s)
--- PASS: TestAccEC2EBSVolumeCopy_updateSize (137.12s)
--- PASS: TestAccEC2EBSVolumeCopy_updateIops (137.22s)
--- PASS: TestAccEC2EBSVolumeCopy_updateVolumeType (137.57s)
--- PASS: TestAccEC2EBSVolumeCopy_updateThroughput (137.65s)
--- PASS: TestAccEC2EBSVolumeCopy_basic (143.05s)
--- PASS: TestAccEC2EBSVolumeCopy_tags (145.91s)
PASS
ok      github.com/hashicorp/terraform-provider-aws/internal/service/ec2        146.194s

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[ElijahQuinones]

⚠️ Our automation has detected the following potential issues with your pull request

❌ Dependency Changes (Click to expand)

Typically Go dependency changes are handled in this repository by dependabot or the maintainers. This is to prevent pull request merge conflicts and further delay reviews of contributions. For more information, see the Dependency Updates section of the contributing guide.

Remove any changes to the go.mod or go.sum files and commit them into this pull request to prevent delays with reviewing and potentially merging it.

Additional details:

• Check open pull requests with the dependencies label to view other dependency updates.
• If this pull request includes an update the AWS Go SDK (or any other dependency) version, only updates submitted via dependabot will be merged. This pull request will need to remove these changes and will need to be rebased after the existing dependency update via dependabot has been merged for this pull request to be reviewed.
• If this pull request is for supporting a new AWS service:
• Ensure the new AWS service changes are following the Adding a New AWS Service section of the contributing guide, in particular that the dependency addition and initial provider support are in a separate pull request from other changes (e.g. new resources). Contributions not following this item will not be reviewed until the changes are split.
• If this pull request is already a separate pull request from the above item, you can ignore this message.

❌ Changelog Entry Required (Click to expand)

Needed to bump the deps for new go sdk can revert and rebase once dependabot puts those deps into main