test: add step.graphql to pipelinesteps factory count assertion #58

Job	Run time
Pre-release Tests	7m 16s
Build Admin UI	22s
Build & Push Container Image (ko)	7m 0s
Build lsp-server binaries	1m 32s
Build wfctl binaries	11m 23s
Build server binaries	12m 37s
Create GitHub Release	29s
Notify IDE Plugins (GoCodeAlone/workflow-jetbrains)	3s
Notify IDE Plugins (GoCodeAlone/workflow-vscode)	5s
	40m 47s

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