fix: add versions.tf and fix tofu fmt for pre-commit

Add required_providers block so tofu validate works in the module
directory. Fix alignment from tofu fmt.

modules/radarr/versions.tf

@@ -0,0 +1,9 @@
+terraform {
+  required_version = ">= 1.10"
+  required_providers {
+    radarr = {
+      source  = "devopsarr/radarr"
+      version = ">= 2.3.5"
+    }
+  }
+}