feat(deps) add 7d cooldown for external deps and 0 for internal

Author: cgoetz-inovex

.github/dependabot.yml

@@ -4,3 +4,22 @@ updates:
     directory: "/"
     schedule:
       interval: "daily"
+    cooldown:
+      default-days: 7
+  - package-ecosystem: "gradle"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    groups:
+      internal-deps:
+        patterns:
+            - "cloud.stackit*"
+      external-deps:
+        patterns:
+            - "*"
+        exclude-patterns:
+            # should be covered by listing internal-deps first (https://docs.github.com/en/code-security/reference/supply-chain-security/dependabot-options-reference#groups--)
+            # but listing it here to be explicit
+            - "cloud.stackit*"
+        cooldown:
+          default-days: 7