chore: increase Dependabot PR limit

Author: nschonni

Diff for: .github/dependabot.yml

@@ -4,16 +4,20 @@ updates:
     directory: '/'
     schedule:
       interval: weekly
+    open-pull-requests-limit: 99
   - package-ecosystem: npm
     directory: '/website'
     schedule:
       interval: weekly
+    open-pull-requests-limit: 99
   - package-ecosystem: npm
     directory: '/website/plugins/docusaurus-plugin-hotjar'
     schedule:
       interval: weekly
     versioning-strategy: increase
+    open-pull-requests-limit: 99
   - package-ecosystem: github-actions
     directory: '/'
     schedule:
       interval: weekly
+    open-pull-requests-limit: 99