Issue number: #4200

Summary

Changes

This pull request implements batch secrets retrieval functionality for AWS Secrets Manager using the batch_get_secret_value API. The implementation introduces a new get_secrets_by_name() function that provides a interface similar to the existing get_parameters_by_name function, allowing users to retrieve multiple secrets in a single API call for significant performance improvements and cost optimization.

User experience

Before this change:

Users had to make individual API calls for each secret, resulting in poor performance and higher costs:

# 3 separate API calls - slow and expensive
db_password = get_secret("database/password")
api_key = get_secret("api/key") 
jwt_secret = get_secret("jwt/secret")

After this change:
Users can retrieve multiple secrets in a single API call with the same familiar interface:

# 1 API call for all secrets - fast and cost-effective
secrets = get_secrets_by_name([
    "database/password",
    "api/key", 
    "jwt/secret"
])
 
# With transforms and caching
secrets = get_secrets_by_name(
    names=["config-secret"],
    transform="json",
    max_age=600
)

Checklist

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• Meet tenets criteria
• I have performed a self-review of this change
• Changes have been tested
• Changes are documented
• PR title follows conventional commit semantics

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