chore: update renovate and labelsync config

Author: favna

.github/renovate.json

@@ -1,6 +1,6 @@
 {
 	"$schema": "https://docs.renovatebot.com/renovate-schema.json",
-	"extends": ["github>sapphiredev/readme:sapphire-renovate"],
+	"extends": ["github>sapphiredev/.github:sapphire-renovate"],
 	"labels": ["dependencies"],
 	"npm": {
 		"packageRules": [

.github/workflows/labelsync.yml

@@ -13,7 +13,9 @@ jobs:
       - name: Checkout Project
         uses: actions/checkout@v3
         with:
-          repository: 'sapphiredev/readme'
+          sparse-checkout: .github/labels.yml
+          sparse-checkout-cone-mode: false
+          repository: 'sapphiredev/.github'
       - name: Run Label Sync
         uses: crazy-max/ghaction-github-labeler@v4
         with: