Add the pip ecosystem to dependabot.yml (#202)

* Add the pip ecosystem to dependabot.yml

* Assign Ezio

Co-authored-by: Ezio Melotti <ezio.melotti@gmail.com>

---------

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>

Author: ezio-melotti

.github/dependabot.yml

@@ -8,3 +8,14 @@ updates:
       actions:
         patterns:
           - "*"
+
+  - package-ecosystem: pip
+    directory: "/"
+    schedule:
+      interval: monthly
+    assignees:
+      - "ezio-melotti"
+    groups:
+      pip:
+        patterns:
+          - "*"