chore: fix renovate config (#1551)

It is possible to validate Renovate configuration with:

    npx --yes --package renovate -- renovate-config-validator

Fixes #1548

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Author: t0yv0

renovate.json5

@@ -3,11 +3,12 @@
   extends: ["github>pulumi/renovate-config//default.json5"],
   packageRules: [
     {
+      matchDatasources: ["npm", "go", "golang-version"],
       // Dependent files need to be rebuilt when key dependencies change.
       //
       // https://docs.renovatebot.com/configuration-options/#postupgradetasks
-      fileFilters: ["go.mod", "nodejs/eks/package.json", "nodejs/eks/yarn.lock"],
       postUpgradeTasks: {
+        fileFilters: ["go.mod", "nodejs/eks/package.json", "nodejs/eks/yarn.lock"],
         commands: ["make renovate"],
         executionMode: "branch", // Only run once.
       },