chore: disable major version updates for .NET SDK (#1312)

* chore: disable major version updates for .NET SDK

Disable major version updates for .NET in the Renovate config.

#1305 (review)

* chore: fix lint warning

Add missing comma for `.json5`.

Author: martincostello

.github/renovate-config.json5

@@ -43,6 +43,12 @@
       labels: ["update-digest"],
       matchUpdateTypes: ["digest"],
     },
+    {
+      extends: ["monorepo:dotnet"],
+      description: ["Disable major version updates for .NET"],
+      matchUpdateTypes: ["major"],
+      enabled: false,
+    },
     {
       // Run the custom matcher on early Monday mornings (UTC)
       schedule: "* 0-4 * * 1",