Enable overriding environment detection

[02strich]

Sometimes it would be great to override the default selected environment (e.g. to force usage of the Lambda environment outside of Lambda), which this change enables.

The code is based on #26.

Issue #, if available:

Description of changes:
This adds a new configuration setting that allows overriding/bypassing the environment detection. In practice this, for example, can be useful when looking to use the library in a lambda-like setting but without the classical env variables.

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[jaredcnance]

Thanks for the PR! Minor comments.

[jaredcnance]

Remove please or use the logger.

[02strich]

fixed

[jaredcnance]

we're calling .lower() multiple times which will result in unnecessary string allocation. Can we just do this once at the top?

[02strich]

changed -- good call

[hussam789]

PR Code Suggestions ✨

Category	Suggestion	Impact
Possible issue	Handle unknown environment values The code logs an info message when it fails to understand the environment override, but continues execution without setting the environment. This could lead to unexpected behavior. Consider either raising an exception or setting a default environment in the else clause. aws_embedded_metrics/environment/environment_detector.py [42-49] -if lower_configured_enviroment == "lambda": +if lower_configured_environment == "lambda": EnvironmentCache.environment = lambda_environment -elif lower_configured_enviroment == "ec2": +elif lower_configured_environment == "ec2": EnvironmentCache.environment = ec2_environment -elif lower_configured_enviroment == "default": +elif lower_configured_environment == "default": EnvironmentCache.environment = default_environment else: - log.info("Failed to understand environment override: %s", Config.environment) + log.warning("Failed to understand environment override: %s, using default environment", Config.environment) + EnvironmentCache.environment = default_environment Apply this suggestion Suggestion importance[1-10]: 6 __ Why: The suggestion improves error handling by logging a warning and assigning a default environment when an unknown value is encountered, enhancing robustness; however, it changes the existing fallback behavior, which warrants a moderate score.	Low
General	Fix variable name typo There's a typo in the variable name 'lower_configured_enviroment' (missing 'n'). This could cause confusion for future developers and inconsistency in the codebase. aws_embedded_metrics/environment/environment_detector.py [40-41] if Config.environment: - lower_configured_enviroment = Config.environment.lower() + lower_configured_environment = Config.environment.lower() Apply this suggestion Suggestion importance[1-10]: 5 __ Why: The suggestion fixes a clear typo in the variable name, which improves readability and consistency; however, it only results in a minor improvement.	Low
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