ci: rename workflows as one #31

Job	Run time
Build / Node / Prepare Steps	15s
Build / Node / Unit Test (pre-steps)	33s
Build / Node / Lint (pre-steps)	40s
Build / Node / Build Image (linux/amd64)	34s
Build / Node / Build Image (linux/arm64)	35s
Build / Node / Push Image	0s
Build / Node / matrix.post-steps.name	0s
	2m 37s

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