fix: install git/jq, rework :latest tagging, and unblock CI on auto PRs #256

Job	Run time
build-linux (ubuntu-latest, linux, x86_64)	1m 49s
build-linux (ubuntu-24.04-arm, linux, arm64)	2m 20s
Validate Windows Dockerfile	9s
Build Windows image	-1s
publish-devcontainer	-1s
Push multi platform	-1s
	4m 15s

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