backend/s3: bump github.com/hashicorp/aws-sdk-go-base/v2

[jar-b]

Incrementing the aws-sdk-go-base dependecy will also pull in the latest version of the AWS SDK for Go V2, which includes support for the newly launched aws login authentication method.

% TF_ACC=1 go test -count=1 ./...
ok      github.com/hashicorp/terraform/internal/backend/remote-state/s3 202.079s

Closes #37976

Target Release

1.15.x

CHANGELOG entry

• This change is user-facing and I added a changelog entry.
• This change is not user-facing.

[gluehbirnenkopf]

@jar-b - I assumed it would be included in the next TF patch release v1.14.4, but saw in this PR it will be 1.15.x.

is there already an ETA for the release including this bugfix/update?

[jar-b]

Correct, Terraform core typically does not include dependency updates in patch releases to avoid any breaking behavioral changes, so we've targeted 1.15 here.

I don't have specifics on anticipated release dates as I'm not a member of the core team. The typical cadence is ~3-4 months between minor versions.