feat: allow instrumentation of Termination lambda

[kayman-mk]

Description

This PR adds the possibility to instrument the internal Lambda function, e.g. with APM tools. Use the following variables:

• runner_terminate_ec2_lambda_handler to replace the handler with your function
• runner_terminate_ec2_environment_variables to add environment variables. The special value {HANDLER} is automatically replaced by the internal handler name to be able to call the "real" handler
• runner_terminate_ec2_lambda_handler_layer_arns to add additional layers to the Lambda function
• runner_terminate_ec2_lambda_egress_rules to allow traffic to external systems. IPv4/6 port 443 is the default

[github-actions]

Hey @kayman-mk! 👋

Thank you for your contribution to the project. Please refer to the contribution rules for a quick overview of the process.

Make sure that this PR clearly explains:

• the problem being solved
• the best way a reviewer and you can test your changes

With submitting this PR you confirm that you hold the rights of the code added and agree that it will published under this LICENSE.

The following ChatOps commands are supported:

• /help: notifies a maintainer to help you out

Simply add a comment with the command in the first line. If you need to pass more information, separate it with a blank line from the command.

This message was generated automatically. You are welcome to improve it.

[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ COPYPASTE	jscpd	yes		no	1.64s
✅ MARKDOWN	markdownlint	1	0	0	0.85s
✅ MARKDOWN	markdown-link-check	1		0	1.75s
✅ REPOSITORY	checkov	yes		no	17.62s
✅ REPOSITORY	dustilock	yes		no	0.62s
✅ REPOSITORY	gitleaks	yes		no	0.99s
✅ REPOSITORY	git_diff	yes		no	0.01s
✅ REPOSITORY	grype	yes		no	8.19s
✅ REPOSITORY	secretlint	yes		no	0.72s
✅ REPOSITORY	syft	yes		no	1.08s
✅ REPOSITORY	trivy-sbom	yes		no	0.07s
✅ REPOSITORY	trufflehog	yes		no	2.54s
✅ SPELL	cspell	9		0	2.72s
✅ TERRAFORM	terraform-fmt	7	0	0	0.46s

See detailed report in MegaLinter reports
Set VALIDATE_ALL_CODEBASE: true in mega-linter.yml to validate all sources, not only the diff