fix(jetbrains): update Terraform version requirement to 1.9+ (#513)

## Summary

- Updated `required_version` constraint from `>= 1.0` to `>= 1.9` in
jetbrains module
- Added inline comment explaining the cross-variable validation
requirement
- Bumped module version from `1.1.0` to `1.1.1` (patch version)

## Issue

The jetbrains module uses cross-variable validation at line 169-171
where `var.options` is referenced within the `var.ide_config` validation
block:

```tf
validation {
  condition = alltrue([
    for code in var.options : contains(keys(var.ide_config), code)
  ])
  error_message = "The ide_config must be a superset of var.options."
}
```

This pattern requires Terraform 1.9+ and fails on earlier versions with:
```
Error: Invalid reference in variable validation
The condition for variable "ide_config" can only refer to the variable itself, using var.ide_config.
```

## References

- Terrafomr release blog that talks abut this feature:
https://www.hashicorp.com/en/blog/terraform-1-9-enhances-input-variable-validations
- Terraform PR that added this feature:
hashicorp/terraform#34955
- HashiCorp Support Article:
https://support.hashicorp.com/hc/en-us/articles/43291233547027

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Author: 3 people

registry/coder/modules/jetbrains/README.md

@@ -14,7 +14,7 @@ This module adds JetBrains IDE buttons to launch IDEs directly from the dashboar
 module "jetbrains" {
   count    = data.coder_workspace.me.start_count
   source   = "registry.coder.com/coder/jetbrains/coder"
-  version  = "1.1.0"
+  version  = "1.1.1"
   agent_id = coder_agent.example.id
   folder   = "/home/coder/project"
   # tooltip  = "You need to [Install Coder Desktop](https://coder.com/docs/user-guides/desktop#install-coder-desktop) to use this button."  # Optional
@@ -40,7 +40,7 @@ When `default` contains IDE codes, those IDEs are created directly without user
 module "jetbrains" {
   count    = data.coder_workspace.me.start_count
   source   = "registry.coder.com/coder/jetbrains/coder"
-  version  = "1.1.0"
+  version  = "1.1.1"
   agent_id = coder_agent.example.id
   folder   = "/home/coder/project"
   default  = ["PY", "IU"] # Pre-configure GoLand and IntelliJ IDEA
@@ -53,7 +53,7 @@ module "jetbrains" {
 module "jetbrains" {
   count    = data.coder_workspace.me.start_count
   source   = "registry.coder.com/coder/jetbrains/coder"
-  version  = "1.1.0"
+  version  = "1.1.1"
   agent_id = coder_agent.example.id
   folder   = "/home/coder/project"
   # Show parameter with limited options
@@ -67,7 +67,7 @@ module "jetbrains" {
 module "jetbrains" {
   count         = data.coder_workspace.me.start_count
   source        = "registry.coder.com/coder/jetbrains/coder"
-  version       = "1.1.0"
+  version       = "1.1.1"
   agent_id      = coder_agent.example.id
   folder        = "/home/coder/project"
   default       = ["IU", "PY"]
@@ -82,7 +82,7 @@ module "jetbrains" {
 module "jetbrains" {
   count    = data.coder_workspace.me.start_count
   source   = "registry.coder.com/coder/jetbrains/coder"
-  version  = "1.1.0"
+  version  = "1.1.1"
   agent_id = coder_agent.example.id
   folder   = "/workspace/project"
 
@@ -108,7 +108,7 @@ module "jetbrains" {
 module "jetbrains_pycharm" {
   count    = data.coder_workspace.me.start_count
   source   = "registry.coder.com/coder/jetbrains/coder"
-  version  = "1.1.0"
+  version  = "1.1.1"
   agent_id = coder_agent.example.id
   folder   = "/workspace/project"
 
@@ -128,7 +128,7 @@ Add helpful tooltip text that appears when users hover over the IDE app buttons:
 module "jetbrains" {
   count    = data.coder_workspace.me.start_count
   source   = "registry.coder.com/coder/jetbrains/coder"
-  version  = "1.1.0"
+  version  = "1.1.1"
   agent_id = coder_agent.example.id
   folder   = "/home/coder/project"
   default  = ["IU", "PY"]

registry/coder/modules/jetbrains/main.tf

@@ -1,5 +1,5 @@
 terraform {
-  required_version = ">= 1.0"
+  required_version = ">= 1.9"
 
   required_providers {
     coder = {
@@ -163,7 +163,8 @@ variable "ide_config" {
     condition     = length(var.ide_config) > 0
     error_message = "The ide_config must not be empty."
   }
-  # ide_config must be a superset of var.. options
+  # ide_config must be a superset of var.options
+  # Requires Terraform 1.9+ for cross-variable validation references
   validation {
     condition = alltrue([
       for code in var.options : contains(keys(var.ide_config), code)