Configure Renovate (#17003)

Co-authored-by: Zoltán Lehóczky <zoltan.lehoczky@lombiq.com>

OrchardCore.sln

@@ -256,6 +256,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		gulpfile.js = gulpfile.js
 		package.json = package.json
 		README.md = README.md
+		renovate.json5 = renovate.json5
 	EndProjectSection
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "OrchardCore.BackgroundTasks", "src\OrchardCore.Modules\OrchardCore.BackgroundTasks\OrchardCore.BackgroundTasks.csproj", "{541A4936-4D31-4A7E-B8DA-D01D76E4E652}"

renovate.json5

@@ -0,0 +1,27 @@
+{
+    // As a GitHub organization admin, you can access the Renovate dashboard at
+    // https: //developer.mend.io/github/OrchardCMS/OrchardCore and manage the GitHub app at
+    // https://github.com/organizations/OrchardCMS/settings/installations/57088442.
+    "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+    "extends": [
+        "config:recommended"
+    ],
+    // See https://docs.renovatebot.com/configuration-options/#configmigration.
+    "configMigration": true,
+    "packageRules": [
+        {
+            "matchPackageNames": [
+                // See the corresponding comment in Directory.Packages.props.
+                "System.Drawing.Common"
+            ],
+            "enabled": false
+        },
+        {
+            // See https://github.com/OrchardCMS/OrchardCore/issues/16318 on why we have NPM updates disabled.
+            "managers": [ "npm" ],
+            "enabled": false
+        }
+    ],
+    // We only need updates once a week.
+    "schedule": [ "before 5am on Sunday" ]
+}