chore(dependabot): correct quoting for prettier (#735)

Author: nschonni

.github/dependabot.yml

@@ -5,11 +5,11 @@ updates:
     schedule:
       interval: weekly
   - package-ecosystem: npm
-    directory: "/website"
+    directory: '/website'
     schedule:
       interval: weekly
   - package-ecosystem: npm
-    directory: "/website/plugins/docusaurus-plugin-hotjar"
+    directory: '/website/plugins/docusaurus-plugin-hotjar'
     schedule:
       interval: weekly
     versioning-strategy: increase