feat: add coder_parameter_order to all data.coder_parameter fields

[michaelbrewer]

Add coder_parameter_order variable to modules that have a data coder_parameter

• [x] aws-region
• [x] azure-region
• [x] dotfiles
• [x] exoscale-instance-type
• [x] exoscale-zone
• [x] gcp-region
• [x] git-config (has 2 parameters)

Examples

NOTE: add coder_parameter_order for git-config could be increments by one, gcp-region order should be higher to start with. So intervals by 10 is always safe

module "git-config" {
  source                = "registry.coder.com/modules/git-config/coder"
  version               = "1.0.11"
  agent_id              = coder_agent.example.id
  allow_email_change    = true
  coder_parameter_order = 10
}

module "gcp-region" {
  source                = "registry.coder.com/modules/gcp-region/coder"
  version               = "1.0.11"
  regions               = ["us", "europe"]
  coder_parameter_order = 20
}

// etc..

related to #207