specify cooldown and dependency groups for dependabot

closes #262

Author: tyrasd

.github/dependabot.yml

@@ -7,3 +7,12 @@ updates:
     directory: "/"
     schedule:
       interval: "daily"
+    cooldown:
+      semver-minor-days: 7
+      semver-patch-days: 7
+    eslint:
+      patterns:
+        - "@eslint/*"
+        - "eslint"
+        - "typescript-eslint"
+      applies-to: version-updates