feat(opentelemetry-instrumentation-aws-sdk): add missing spec-defined DynamoDB attributes

[carolabadeer]

Which problem is this PR solving?

• DynamoDB spans generated by the AWS SDK instrumentation are missing attributes defined in the opentelemetry spec for AWS instrumentations.
• This PR builds on the addition of attributes for the BatchGetItem operation in feat(instrumentation-aws-sdk): upstream aws-sdk instrumentation from ext-js #678 and is completed by feat: Add capacity information when applicable to dynamodb spans #1365 which adds the ConsumedCapacity attribute for all applicable operations.

Short description of the changes

• Added operation-specific attributes for DynamoDB operations that did not have attributes added according to the spec.
• This implementation captures request/response parameters for both AWS SDK v2 and v3 calls.
• AWS SDK v2 is on a deprecation path and the recommendation is for all users to start using or migrate to v3. In v3, the AttributesToGet request parameter (used in DynamoDB.query and DynamoDB.Scan), and by extension the AWS_DYNAMODB_ATTRIBUTES_TO_GET attribute, are no longer necessary since the AttributesToGet parameter has been deprecated in favor of ProjectionExpression. Since the value of the ProjectionExpression parameter is already being captured for the AWS_DYNAMODB_PROJECTION attribute in this PR, it is redundant to include a backwards-compatible check for the deprecated attribute.

Testing

These changes were tested end-to-end using a simple application that makes a DynamoDB ListItems call and uses the aws-otel-collector to export data to AWS X-Ray. For ListItems operation, the new aws.dynamodb.table_count, aws.dynamodb.exclusive_start_table, and aws.dynamodb.exclusive_start_table are now being populated correctly

"metadata": {
      "default": {
          "db.statement": "{\"ExclusiveStartTableName\":\"Movies2\",\"Limit\":20}",
          "rpc.service": "DynamoDB",
          "db.system": "dynamodb",
          "db.operation": "ListTables",
          "aws.dynamodb.table_count": 12,
          "rpc.system": "aws-api",
          "aws.dynamodb.exclusive_start_table": "Movies2",
          "aws.dynamodb.limit": 20
      }
  },

[codecov]

Codecov Report

Merging #1524 (d63f132) into main (de17f77) will decrease coverage by 0.76%.
The diff coverage is n/a.

❗ Current head d63f132 differs from pull request most recent head 6936aa3. Consider uploading reports for the commit 6936aa3 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1524      +/-   ##
==========================================
- Coverage   96.13%   95.38%   -0.76%     
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  Files          14       16       +2     
  Lines         906      997      +91     
  Branches      197      206       +9     
==========================================
+ Hits          871      951      +80     
- Misses         35       46      +11     

see 2 files with indirect coverage changes

[haddasbronfman]

Thank for adding this! this is very helpful :)