remove large PR limit, add docker

Author: zacharyfleck

.github/dependabot.yaml

@@ -4,7 +4,6 @@ updates:
     directory: "/"
     schedule:
       interval: "daily"
-    open-pull-requests-limit: 10
     groups:
       eslint:
         patterns:
@@ -20,4 +19,7 @@ updates:
     directory: "/"
     schedule:
       interval: "daily"
-    open-pull-requests-limit: 10
+  - package-ecosystem: "docker"
+    directory: "/"
+    schedule:
+      interval: "daily"