fix(eventbridge): update role naming and path conventions to default to context ID

[nhs-oliverslater]

Description

Update the EventBridge module to default role naming and path conventions to the context ID, improving consistency and clarity in naming.

Context

This change addresses the need for a more intuitive naming convention for IAM roles and paths, ensuring they align with the context of the service, project, and environment.

Type of changes

• Refactoring (non-breaking change)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would change existing functionality)
• Bug fix (non-breaking change which fixes an issue)

Checklist

• I am familiar with the contributing guidelines
• I have followed the code style of the project
• I have added tests to cover my changes
• I have updated the documentation accordingly
• This PR is a result of pair or mob programming

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• I confirm that neither PII/PID nor sensitive data are included in this PR and the codebase changes.