feat: implement idempotency for init-reserve-management #1406

Job	Run time
build	1m 10s
devshell-tests (nixos)	19s
devshell-tests (macos)	43s
upload-chain-specs	43s
local-environment-tests	0s
deploy-argocd	0s
deploy-rustdoc	1m 45s
local-environment-tests-post-merge	9m 37s
local-environment-tests-alert	0s
argocd-tests	0s
teardown-argocd	0s
pre-merge-checks-complete	0s
local-environment-tests-post-merge-alert	7s
post-merge-actions-complete	1s
	14m 25s

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