Add :latest tag to stable releases for improved user experience #71

Job	Run time
container (nftables) / build (amd64)	5m 21s
container (neofetch) / build (arm64)	8m 19s
container (nftables) / build (arm64)	5m 46s
container (neofetch) / build (amd64)	8m 17s
container (ntpd) / build (arm64)	6m 27s
container (ntpd) / build (amd64)	6m 3s
container (system) / build (arm64)	16m 5s
container (httpd) / build (arm64)	4m 57s
container (httpd) / build (amd64)	5m 4s
container (system) / build (amd64)	13m 51s
container (httpd) / push	21s
container (nftables) / push	17s
container (ntpd) / push	20s
container (neofetch) / push	25s
container (system) / push	29s
	1h 22m 2s

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