Move release workflow to use nix #1778

Job	Run time
Elixir - build_ockam	1s
Elixir - build_ockam_abac	4s
Elixir - build_ockam_cloud_node	3s
Elixir - lint_ockam	3s
Elixir - build_ockam_healthcheck	3s
Elixir - lint_ockam_abac	3s
Elixir - build_ockam_kafka	1s
Elixir - test_ockam	1s
Elixir - lint_ockam_cloud_node	3s
Elixir - build_ockam_metrics	3s
Elixir - test_ockam_abac	1s
Elixir - lint_ockam_healthcheck	4s
Elixir - build_ockam_services	2s
Elixir - test_ockam_cloud_node	1s
Elixir - lint_ockam_kafka	4s
Elixir - build_ockam_typed_cbor	1s
Elixir - test_ockam_healthcheck	3s
Elixir - lint_ockam_metrics	2s
Elixir - build_ockam_vault_software	1s
Elixir - test_ockam_kafka	1s
Elixir - lint_ockam_services	1s
Elixir - test_ockam_metrics	1s
Elixir - lint_ockam_typed_cbor	1s
Elixir - test_ockam_services	1s
Elixir - lint_ockam_vault_software	1s
Elixir - test_ockam_typed_cbor	1s
Elixir - test_ockam_vault_software	3s
	54s

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