fix: crash of partner-chains-node smart-contracts subcommand + small fixes #1304

Job	Run time
build	8m 35s
local-environment-tests	6m 10s
deploy-rustdoc	0s
deploy-argocd	45s
devshell-tests (nixos)	20s
devshell-tests (macos)	43s
local-environment-tests-post-merge	0s
upload-chain-specs	0s
local-environment-tests-post-merge-alert	0s
post-merge-actions-complete	0s
argocd-tests	2m 27s
teardown-argocd	29s
local-environment-tests-alert	6s
pre-merge-checks-complete	2s
	19m 37s

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