fix(examples): remove version specification

Aericio · web-flow · commit 3b0e2b4bd648 · 2025-04-23T20:39:40.000-10:00
```
Error: Failed to query available provider packages
Could not retrieve the list of available versions for provider coder/coder:
no available releases match the given constraints &gt;= 0.17.0, ~&gt; 1.0.0, &gt;=
2.1.0
To see which modules are currently depending on coder/coder and what versions
are specified, run the following command:
    terraform providers
```
diff --git a/examples/templates/docker-devcontainer/main.tf b/examples/templates/docker-devcontainer/main.tf
@@ -1,8 +1,7 @@
 terraform {
   required_providers {
     coder = {
-      source  = "coder/coder"
-      version = "~> 1.0.0"
+      source = "coder/coder"
     }
     docker = {
       source = "kreuzwerker/docker"
