chore(main): release 6.3.0

[cattle-ops-releaser]

🤖 I have created a release beep boop

6.3.0 (2023-04-21)

Features

• add an IAM policy to grant the runner access to the KMS key (#778) (df25b6a)
• spotfleet: add supports spot fleets for spot instances allowing us to use multiple instance types and AZs (#777) (1bb7e11)

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[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ COPYPASTE	jscpd	yes		no	1.17s
✅ REPOSITORY	checkov	yes		no	17.48s
✅ REPOSITORY	dustilock	yes		no	0.19s
✅ REPOSITORY	gitleaks	yes		no	0.92s
✅ REPOSITORY	git_diff	yes		no	0.01s
✅ REPOSITORY	secretlint	yes		no	0.88s
✅ REPOSITORY	syft	yes		no	0.33s

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[cattle-ops-releaser]

🤖 Release is at https://github.com/cattle-ops/terraform-aws-gitlab-runner/releases/tag/6.3.0 🌻