ci(helm): run kube e2e inside CI container with --network host #11

Job	Run time
Resolve PR metadata	6s
build-supervisor / Resolve build plan	4s
build-gateway / Resolve build plan	3s
build-gateway / Rust gateway (amd64) / gateway (amd64)	4m 11s
build-supervisor / Rust sandbox (amd64) / sandbox (amd64)	2m 27s
build-supervisor / Build supervisor (amd64)	1m 15s
build-gateway / Build gateway (amd64)	1m 25s
build-supervisor / Merge ${{ inputs.component }} manifest	0s
Helm E2E (Rust smoke)	29s
build-gateway / Merge ${{ inputs.component }} manifest	0s
	10m 0s

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