Issue #3206510: no composer.json in module

Closes #3206510

composer.json

+{
+  "name": "drupal/session_limit",
+  "description": "Session Limit",
+  "type": "drupal-module",
+  "license": "GPL-2.0-or-later",
+  "homepage": "https://drupal.org/project/session_limit",
+  "support": {
+    "issues": "https://drupal.org/project/issues/session_limit",
+    "source": "https://git.drupalcode.org/project/session_limit"
+  },
+  "require": {
+    "drupal/core": "^8 || ^9 || ^10"
+  }
+}