contrib/aws/aws-sdk-go-v2: add aws_service, region, and resourcename

[zARODz11z]

What does this PR do?

Adds

aws_service
region
<resourcename> such as queuename

Motivation

Serverless inferred related resources, pivot from traces to aws integration metrics ootb

Describe how to test/QA your changes

Reviewer's Checklist

• Changed code has unit tests for its functionality.
• If this interacts with the agent in a new way, a system test has been added.

[pr-commenter]

Benchmarks

Comparing candidate commit 1cdb93d in PR branch ar/ConsistentApmSpanTagsForAwsRequests with baseline commit d1c023c in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 18 metrics, 0 unstable metrics.

[katiehockman]

Thanks for the PR! I didn't review the tests yet, but here are some starting comments for the main aws.go file changes.

Could you please update the PR description to meet the criteria described here: https://github.com/DataDog/dd-trace-go/blob/main/CONTRIBUTING.md#contributing

We also try to avoid linking to internal documentation in the PR descriptions. That can be sent via Slack instead to provide any necessary context for our review. Can you remove those links from the PR description?

[jonbodner]

LGTM

[katiehockman]

Just a few nits, but otherwise looks good. Thanks!