Add dependabot configuration file (#442)

* Add dependabot configuration file

This tells dependabot where to find all the packages as currently it does not know there are 17 packages.

* Update dependabot.yaml

---------

Co-authored-by: Lukasz Ostrowski <lukasz.ostrowski@saleor.io>

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,2 @@
+# Impact
+* [ ] .github/dependabot.yaml is up-to date.

.github/dependabot.yaml

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+version: 2
+updates:
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+
+  # Packages
+  - package-ecosystem: "npm"
+    directory: "/packages/eslint-config-saleor"
+    schedule:
+      interval: "weekly"
+  - package-ecosystem: "npm"
+    directory: "/packages/shared"
+    schedule:
+      interval: "weekly"
+  - package-ecosystem: "npm"
+    directory: "/packages/ui"
+    schedule:
+      interval: "weekly"
+  - package-ecosystem: "npm"
+    directory: "/packages/react-hook-form-macaw"
+    schedule:
+      interval: "weekly"
+
+  # Apps
+  - package-ecosystem: "npm"
+    directory: "/apps/cms"
+    schedule:
+      interval: "weekly"
+  - package-ecosystem: "npm"
+    directory: apps/crm
+    schedule:
+      interval: weekly
+  - package-ecosystem: "npm"
+    directory: apps/data-importer
+    schedule:
+      interval: weekly
+  - package-ecosystem: "npm"
+    directory: apps/emails-and-messages
+    schedule:
+      interval: weekly
+  - package-ecosystem: "npm"
+    directory: apps/invoices
+    schedule:
+      interval: weekly
+  - package-ecosystem: "npm"
+    directory: apps/klaviyo
+    schedule:
+      interval: weekly
+  - package-ecosystem: "npm"
+    directory: apps/monitoring
+    schedule:
+      interval: weekly
+  - package-ecosystem: "pip"
+    directory: apps/monitoring/backend
+    schedule:
+      interval: weekly
+  - package-ecosystem: "docker"
+    directory: apps/monitoring/backend
+    schedule:
+      interval: weekly
+  - package-ecosystem: "npm"
+    directory: apps/products-feed
+    schedule:
+      interval: weekly
+  - package-ecosystem: "npm"
+    directory: apps/search
+    schedule:
+      interval: weekly
+  - package-ecosystem: "npm"
+    directory: apps/slack
+    schedule:
+      interval: weekly
+  - package-ecosystem: "npm"
+    directory: apps/taxes
+    schedule:
+      interval: weekly