[CI] Use dependabot instead of CompatHelper (#59)

Author: giordano

.github/dependabot.yml

@@ -1,7 +1,18 @@
-# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+# 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/en/code-security/dependabot/working-with-dependabot/dependabot-options-reference
 version: 2
+
+# To be able to managet the Julia ecosystem for the time being
+enable-beta-ecosystems: true
+
 updates:
   - package-ecosystem: "github-actions"
     directory: "/" # Location of package manifests
     schedule:
       interval: "weekly"
+  - package-ecosystem: "julia" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"