feat: Extract resource arn and remote resource access key for cross-account support

[blairhyy-amazon]

Description of changes:

1. Add auto-instrumentation support for the following AWS resources.

• Populate aws.stream.arn in Span by extracting StreamArn from the request body.
• Populate aws.table.arn in Span by extracting TableArn from the response body.

2. Add auto-instrumentation support for remote resource access key.

• Populate aws.auth.account.access_key and aws.auth.region in Span from STS credentials in client instance

3. Generate cross-account metrics attributes when remote resource identifier is present

• If remote resource arn is available, extract account id and region from arn.
• Otherwise, pass account access key id and region from span to metric if available.

4. Add unit tests, contract tests. Done E2E tests with CW agent.

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