ci: add npm dependencies update

Signed-off-by: Emilien Escalle <[email protected]>

Author: neilime

.github/dependabot.yml

@@ -25,3 +25,16 @@ updates:
       github-actions-dependencies:
         patterns:
           - "*"
+
+  - package-ecosystem: npm
+    open-pull-requests-limit: 20
+    versioning-strategy: widen
+    directory: "/"
+    schedule:
+      interval: weekly
+      day: friday
+      time: "04:00"
+    groups:
+      npm-dependencies:
+        patterns:
+          - "*"