ci: downgraded rider version to support older unity version

Author: Cammin

Packages/manifest.json

@@ -4,7 +4,7 @@
     "com.quickeye.icon-browser": "https://github.com/ErnSur/unity-editor-icons.git",
     "com.unity.2d.sprite": "1.0.0",
     "com.unity.2d.tilemap": "1.0.0",
-    "com.unity.ide.rider": "3.0.39",
+    "com.unity.ide.rider": "3.0.38",
     "com.unity.ide.visualstudio": "2.0.27",
     "com.unity.test-framework": "1.4.5",
     "com.unity.modules.ai": "1.0.0",

Packages/packages-lock.json

@@ -36,7 +36,7 @@
       "dependencies": {}
     },
     "com.unity.ide.rider": {
-      "version": "3.0.39",
+      "version": "3.0.38",
       "depth": 0,
       "source": "registry",
       "dependencies": {