security: Delay dependabot updates [TAROT-3707] (#285)

7 days should be enough when most malicious packages are patched within 24 hours.

Author: afsmeira

.github/dependabot.yml

@@ -1,19 +1,21 @@
 version: 2
 updates:
-- package-ecosystem: pip
-  directory: "/"
-  schedule:
-    interval: daily
-    timezone: Europe/Lisbon
-  open-pull-requests-limit: 10
-  allow:
-  - dependency-type: direct
-  - dependency-type: indirect
-  ignore:
-  - dependency-name: pylint
-    versions:
-    - 2.8.1
-  - dependency-name: pylint-django
-    versions:
-    - 2.4.2
-    - 2.4.3
+  - package-ecosystem: pip
+    directory: "/"
+    schedule:
+      interval: daily
+      timezone: Europe/Lisbon
+    open-pull-requests-limit: 10
+    allow:
+      - dependency-type: direct
+      - dependency-type: indirect
+    ignore:
+      - dependency-name: pylint
+        versions:
+          - 2.8.1
+      - dependency-name: pylint-django
+        versions:
+          - 2.4.2
+          - 2.4.3
+    cooldown:
+      default-days: 7