Increase open pull requests limit

Author: wojtekmaj

.github/dependabot.yml

@@ -4,13 +4,16 @@ updates:
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 10
 
   - package-ecosystem: "npm"
     directory: "/sample"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 10
 
   - package-ecosystem: "npm"
     directory: "/test"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 10