feat(renovate): move the configuration files to a dedicated repository

.github/renovate.json

@@ -1,6 +1,8 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "description": "Renovate GitHub self-hosted runner repository configuration",
   "extends": [
-    "local>gsuquet/renovate:renovate-repo-config"
+    "local>gsuquet/renovate-config//default:github",
+    "local>gsuquet/renovate-config//repo"
   ]
 }

renovate-runner-config.json

@@ -1,21 +1,4 @@
 {
     "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-    "description": "Renovate self-hosted runner configuration",
-    "autodiscover": true,
-    "autodiscoverFilter": ["gsuquet/*"],
-    "branchPrefix": "gsuquet/renovate/",
-    "dependencyDashboardTitle": "Dependency Dashboard (self-hosted)",
-    "gitAuthor": "Renovate Bot <bot@renovateapp.com>",
-    "onboarding": true,
-    "onboardingConfig": {
-      "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-      "extends": ["local>gsuquet/renovate:renovate-default-config"]
-    },
-    "onboardingConfigFileName": ".github/renovate.json",
-    "onboardingBranch": "chore/renovate/onboarding",
-    "onboardingCommitMessage": "chore(config): add renovate",
-    "onboardingPrTitle": "chore(renovate): onboarding and configuration",
-    "platform": "github",
-    "platformCommit": true,
-    "prCommitsPerRunLimit": 0
+    "extends": ["local>gsuquet/renovate-config//renovate/runner:github"]
 }