chore(jetbrains-fleet): add deprecation warning for Fleet discontinuation

- Add deprecation warning to README.md with link to JetBrains announcement
- Update version to 1.0.3 in all code examples
- Suggest migration to JetBrains Gateway module

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registry/coder/modules/jetbrains-fleet/README.md

@@ -8,6 +8,9 @@ tags: [ide, jetbrains, fleet]
 
 # Jetbrains Fleet
 
+> [!WARNING]
+> **Deprecation Notice:** JetBrains has announced that Fleet will be discontinued. For more information, see [The Future of Fleet](https://blog.jetbrains.com/fleet/2025/12/the-future-of-fleet). Consider migrating to other JetBrains IDEs such as IntelliJ IDEA, PyCharm, or GoLand with the [JetBrains Gateway](https://registry.coder.com/modules/jetbrains-gateway) module.
+
 This module adds a Jetbrains Fleet button to your Coder workspace that opens the workspace in JetBrains Fleet using SSH remote development.
 
 JetBrains Fleet is a next-generation IDE that supports collaborative development and distributed architectures. It connects to your Coder workspace via SSH, providing a seamless remote development experience.
@@ -16,7 +19,7 @@ JetBrains Fleet is a next-generation IDE that supports collaborative development
 module "jetbrains_fleet" {
   count    = data.coder_workspace.me.start_count
   source   = "registry.coder.com/coder/jetbrains-fleet/coder"
-  version  = "1.0.2"
+  version  = "1.0.3"
   agent_id = coder_agent.main.id
 }
 ```
@@ -37,7 +40,7 @@ module "jetbrains_fleet" {
 module "jetbrains_fleet" {
   count    = data.coder_workspace.me.start_count
   source   = "registry.coder.com/coder/jetbrains-fleet/coder"
-  version  = "1.0.2"
+  version  = "1.0.3"
   agent_id = coder_agent.main.id
 }
 ```
@@ -48,7 +51,7 @@ module "jetbrains_fleet" {
 module "jetbrains_fleet" {
   count    = data.coder_workspace.me.start_count
   source   = "registry.coder.com/coder/jetbrains-fleet/coder"
-  version  = "1.0.2"
+  version  = "1.0.3"
   agent_id = coder_agent.main.id
   folder   = "/home/coder/project"
 }
@@ -60,7 +63,7 @@ module "jetbrains_fleet" {
 module "jetbrains_fleet" {
   count        = data.coder_workspace.me.start_count
   source       = "registry.coder.com/coder/jetbrains-fleet/coder"
-  version      = "1.0.2"
+  version      = "1.0.3"
   agent_id     = coder_agent.main.id
   display_name = "Fleet"
   group        = "JetBrains IDEs"
@@ -74,7 +77,7 @@ module "jetbrains_fleet" {
 module "jetbrains_fleet" {
   count      = data.coder_workspace.me.start_count
   source     = "registry.coder.com/coder/jetbrains-fleet/coder"
-  version    = "1.0.2"
+  version    = "1.0.3"
   agent_id   = coder_agent.main.id
   agent_name = coder_agent.example.name
 }