Feature/CCM-10921 Add Lambda Boilerplate

[jamesthompson26-nhs]

Description

Adds enough boilerplate and tooling to write, package and deploy typescript lambdas.

Same changes applied to repo template: https://github.com/NHSDigital/nhs-notify-repository-template/pull/68/files#diff-57dcd7ab96343733df7805d3bd740d58c9b407a00274b5bc31af8ff1ad987db0

Bumped TFSec to Trivy too.

Context

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.