ci(helm): consume prebuilt openshell CLI artifact in kind e2e job #10

Job	Run time
Resolve PR metadata	7s
build-cli / cli (amd64)	4m 36s
build-supervisor / Resolve build plan	3s
build-gateway / Resolve build plan	4s
build-gateway / Rust gateway (amd64) / gateway (amd64)	4m 10s
build-supervisor / Rust sandbox (amd64) / sandbox (amd64)	2m 26s
build-supervisor / Build supervisor (amd64)	1m 18s
build-gateway / Build gateway (amd64)	1m 22s
build-supervisor / Merge ${{ inputs.component }} manifest	-1s
Helm E2E (Rust smoke)	1m 44s
build-gateway / Merge ${{ inputs.component }} manifest	-1s
	15m 48s

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