Update service metadata in iam_definition.json

[smrojas]

Problem

Observed UNKNOWN_PREFIX - Unknown prefix bedrock from parliament. This is a new AWS service called Bedrock. We need to refresh the mappings with the most recent services.

Testing

Ran python utils/update_iam_data.py > parliament/iam_definition.json and looked for the bedrock service in the json

    "prefix": "bedrock",                                                                                                                                                    "privileges": [
      {
        "access_level": "Write",
        "description": "Grants permission to create a job for customizing the model with your custom training data",
        "privilege": "CreateModelCustomizationJob",
        "resource_types": [
          {
            "condition_keys": [],
            "dependent_actions": [],
            "resource_type": "custom-model*"
          },
          {
            "condition_keys": [],
            "dependent_actions": [],
            "resource_type": "foundation-model*"
          },
          {
            "condition_keys": [],
            "dependent_actions": [],
            "resource_type": "model-customization-job*"
          },
          {
            "condition_keys": [
              "aws:RequestTag/${TagKey}",
              "aws:TagKeys"
            ],
            "dependent_actions": [],
            "resource_type": ""
          }
        ]
      }

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