refactor(coder-labs/copilot): support terraform provider coder v2.12.0 (#492)

## Description

Updates the module to use the new version of the agentapi module for
Coder 2.28

## Type of Change

- [ ] New module
- [ ] New template
- [ ] Bug fix
- [x] Feature/enhancement
- [ ] Documentation
- [ ] Other

## Module Information

**Path:** `registry/coder-labs/modules/copilot`  
**New version:** `v0.3.0`  
**Breaking change:** [x] Yes [ ] No

## Testing & Validation

- [x] Tests pass (`bun test`)
- [x] Code formatted (`bun fmt`)
- [ ] Changes tested locally

## Related Issues

- https://github.com/coder/internal/issues/1065

## Related PRs

- https://github.com/coder/registry/pull/485

Co-authored-by: DevCats <christofer@coder.com>

registry/coder-labs/modules/copilot/README.md

@@ -13,7 +13,7 @@ Run [GitHub Copilot CLI](https://docs.github.com/copilot/concepts/agents/about-c
 ```tf
 module "copilot" {
   source   = "registry.coder.com/coder-labs/copilot/coder"
-  version  = "0.2.3"
+  version  = "0.3.0"
   agent_id = coder_agent.example.id
   workdir  = "/home/coder/projects"
 }
@@ -51,7 +51,7 @@ data "coder_parameter" "ai_prompt" {
 
 module "copilot" {
   source   = "registry.coder.com/coder-labs/copilot/coder"
-  version  = "0.2.3"
+  version  = "0.3.0"
   agent_id = coder_agent.example.id
   workdir  = "/home/coder/projects"
 
@@ -71,7 +71,7 @@ Customize tool permissions, MCP servers, and Copilot settings:
 ```tf
 module "copilot" {
   source   = "registry.coder.com/coder-labs/copilot/coder"
-  version  = "0.2.3"
+  version  = "0.3.0"
   agent_id = coder_agent.example.id
   workdir  = "/home/coder/projects"
 
@@ -142,7 +142,7 @@ variable "github_token" {
 
 module "copilot" {
   source       = "registry.coder.com/coder-labs/copilot/coder"
-  version      = "0.2.3"
+  version      = "0.3.0"
   agent_id     = coder_agent.example.id
   workdir      = "/home/coder/projects"
   github_token = var.github_token
@@ -156,7 +156,7 @@ Run Copilot as a command-line tool without task reporting or web interface. This
 ```tf
 module "copilot" {
   source       = "registry.coder.com/coder-labs/copilot/coder"
-  version      = "0.2.3"
+  version      = "0.3.0"
   agent_id     = coder_agent.example.id
   workdir      = "/home/coder"
   report_tasks = false

registry/coder-labs/modules/copilot/main.tf

@@ -3,7 +3,7 @@ terraform {
   required_providers {
     coder = {
       source  = "coder/coder"
-      version = ">= 2.7"
+      version = ">= 2.12"
     }
   }
 }
@@ -242,7 +242,7 @@ resource "coder_env" "github_token" {
 
 module "agentapi" {
   source  = "registry.coder.com/coder/agentapi/coder"
-  version = "1.2.0"
+  version = "2.0.0"
 
   agent_id             = var.agent_id
   folder               = local.workdir
@@ -300,3 +300,7 @@ module "agentapi" {
     /tmp/install.sh
   EOT
 }
+
+output "task_app_id" {
+  value = module.agentapi.task_app_id
+}