Update ghcr.io/product-os/self-hosted-runners Docker tag to v6.3.9 #1955

Job	Run time
Flowzone / Event Types (pull_request, opened)	3s
Flowzone / File list	3s
Flowzone / actionlint	5s
Flowzone / Versioned source	28s
Flowzone / octoscan	6s
Flowzone / Clean GitHub release	0s
Flowzone / Pre-commit hooks	2m 34s
Flowzone / Check NodeJS versions	0s
Flowzone / Finalize npm	0s
Flowzone / Finalize npm docs	0s
Flowzone / Is rust	10s
Flowzone / Is python	4s
Flowzone / Is custom	5s
Flowzone / Is balena	4s
Flowzone / Is docker	16s
Flowzone / Is CloudFormation	0s
Flowzone / Generate release notes	6s
Flowzone / Test npm	0s
Flowzone / Finalize CloudFormation	0s
Flowzone / Test CloudFormation	0s
Flowzone / Generate SBOM for NPM	0s
Flowzone / Finalize python	0s
Flowzone / Test python poetry	0s
Flowzone / Finalize custom	0s
Flowzone / Clean custom	0s
Flowzone / Test custom	0s
Flowzone / Generate SBOM for python	0s
Flowzone / Finalize GitHub release	0s
Flowzone / Prepare deploy message	0s
Flowzone / Finalize rust	0s
Flowzone / Test rust	0s
Flowzone / Generate SBOM for cargo	0s
Flowzone / Finalize docker	0s
Flowzone / Test docker	0s
Flowzone / All tests	1s
Flowzone / Publish custom	0s
Flowzone / Publish rust	0s
Flowzone / Publish to test PyPI	0s
Flowzone / Publish website	0s
Flowzone / Publish balena (product_os/github-runners-amd64)	1m 49s
Flowzone / Publish balena (product_os/github-runners-aarch64)	3m 6s
Flowzone / Publish docker	0s
Flowzone / Publish npm	0s
Flowzone / Always custom	0s
Flowzone / Publish Github release	13s
Flowzone / All jobs	1s
Flowzone / Auto-merge	0s
	9m 14s

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