feat: add order variable to coder_app modules

[michaelbrewer]

Add per the coder docs coder applications can be reordered in the ui via the order field

https://coder.com/docs/v2/latest/templates/resource-ordering#applications

This change allows this:

module "code-server" {
  source          = "registry.coder.com/modules/code-server/coder"
  version         = "1.0.5"
  agent_id        = coder_agent.main.id
  install_version = "4.8.3"
  order           = 2
}

module "filebrowser" {
  source   = "registry.coder.com/modules/filebrowser/coder"
  version  = "1.0.3"
  agent_id = coder_agent.example.id
  folder   = "/home/coder/project"
  order    = 1
}

Closes coder/modules#178

[matifali]

Thank you @michaelbrewer. Great contribution. We recently added this functionality so it will only work on deployments on latest release.
We are still looking for a suitable way to check Coder version compatibility with modules that depend on newer features.
See #121

[michaelbrewer]

@matifali can we bump the required provider to "0.14.2" when order was added ?

terraform {
  required_version = ">= 1.0"
  required_providers {
    coder = {
      source  = "coder/coder"
      version = ">= 0.14.2"
    }
  }
}

[matifali]

@michaelbrewer Yes we need to otherwise it won't be updated.

[michaelbrewer]

@matifali set the required version for coder/coder to be >= 0.14.2

[matifali]

LGTM. Waiting for an approval from @mtojek and then we are good to merge.

[mtojek]

👍

Thanks for working on this! Should we use the latest version of coder provider?

[michaelbrewer]

@mtojek - So, i can change the required version to 0.18.0 if needed, i just used 0.14.2 as this was when order was added to coder_app.

coder/terraform-provider-coder@7a00ae7

[mtojek]

I see 👍 I think the last order change was introduced in v0.17.0, so maybe just bump it to this version.

[michaelbrewer]

Cool @mtojek updated.