Mark discrete_channel_release as deprecated as is_discrete_channel_release should be used

[hnrkndrssn]

Background

We find an issue when we create a new project via terraform octopus provider in our CICD pipeline, because it generates unexpected value on discrete_channel_release on the creation.

Provider Version: OctopusDeploy/octopusdeploy - 1.1.2

Error Message:

│ Error: Provider produced inconsistent result after apply
│
│ When applying changes to
│ module.octopus.octopusdeploy_project.tu_project["project_group_ccb_project_ccb"],
│ provider "provider[\"registry.terraform.io/octopusdeploy/octopusdeploy\"]"
│ produced an unexpected new value: .discrete_channel_release: was cty.True,
│ but now cty.False.
│
│ This is a bug in the provider, which should be reported in the provider's
│ own issue tracker.
╵
Error: Terraform exited with code 1.

Solution

We have both discrete_channel_release and is_discrete_channel_release on the project resource, we pass the value of is_discrete_channel_release to the Octopus API (mapped to DiscreteChannelRelease property on the project).

This PR deprecates the discrete_channel_release property and tells users to use the is_discrete_channel_release instead.

[sc-128196]

[HuyPhanNguyen]

LGTM