ci(dependabot): remove cooldown and increase open PR limit

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

Author: crazy-max

.github/dependabot.yml

@@ -4,8 +4,7 @@ updates:
     directory: "/"
     schedule:
       interval: "daily"
-    cooldown:
-      default-days: 7
+    open-pull-requests-limit: 10
     labels:
       - "area/dependencies"
       - "bot"