Add dependabot config for pip

Author: marvinbuss

.github/dependabot.yml

@@ -24,6 +24,17 @@ updates:
       - "pip"
       - "dependencies"
 
+  # Maintain dependencies for pip
+  - package-ecosystem: "pip"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "sunday"
+      time: "10:00"
+    labels:
+      - "pip"
+      - "dependencies"
+
   # Maintain dependencies for Terraform
   - package-ecosystem: "terraform"
     directory: "/code/infra"