Enhance Dependabot configuration for updates

Added configuration for GitHub Actions and updated pip package schedules.

Author: steve-downey

.github/dependabot.yml

@@ -0,0 +1,34 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+
+---
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    groups:
+      github-actions:
+        patterns:
+          - "*"
+        exclude-patterns:
+          - "actions/*"
+          - "github/*"
+      github-owned-actions:
+        patterns:
+          - "actions/*"
+          - "github/*"
+    schedule:
+      interval: "weekly"
+
+  - package-ecosystem: pip
+    directory: /papers/P2988
+    schedule:
+      interval: daily
+
+  - package-ecosystem: pip
+    directory: /
+    schedule:
+      interval: daily
+