add new data sources to aws_bedrockagent_data_source

[hjoshi123]

Description

This PR introduces new data source configurations like confluence, sharePoint, salesforce to aws_bedrockagent_data_source resource which was introduced recently Bedrock API. Schema and data models have been updated for the same.

Relations

Closes #40577

References

https://docs.aws.amazon.com/bedrock/latest/APIReference/API_agent_DataSourceConfiguration.html#bedrock-Type-agent_DataSourceConfiguration-webConfiguration

Output from Acceptance Testing

% make testacc TESTS=TestAccXXX PKG=ec2

...

[github-actions]

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[hjoshi123]

Need help in writing acceptance tests since I am not sure what the values of the data configurations should be. It would be nice if someone could assist me on this.