fix: add additional tags to the worker role

[kayman-mk]

Description

Using var.runner_worker_docker_machine_role.additional_tags and var.runner_worker_docker_autoscaler_role.additional_tags should add tags to the respective role. But the variables were missing and no tags added

[github-actions]

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[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ COPYPASTE	jscpd	yes		no	1.33s
✅ REPOSITORY	checkov	yes		no	25.67s
✅ REPOSITORY	dustilock	yes		no	0.31s
✅ REPOSITORY	gitleaks	yes		no	0.71s
✅ REPOSITORY	git_diff	yes		no	0.01s
✅ REPOSITORY	grype	yes		no	9.95s
✅ REPOSITORY	secretlint	yes		no	0.61s
✅ REPOSITORY	syft	yes		no	1.22s
✅ REPOSITORY	trivy-sbom	yes		no	0.07s
✅ REPOSITORY	trufflehog	yes		no	2.28s
✅ SPELL	cspell	2		0	2.26s
✅ TERRAFORM	terraform-fmt	1	0	0	0.06s

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