ci: add dependabot

Signed-off-by: Jan Lauber <jan.lauber@protonmail.ch>

.github/dependabot.yml

@@ -0,0 +1,26 @@
+# 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: "npm" # See documentation for possible values
+    directory: "kubelab-ui/" # Location of package manifests
+    schedule:
+      interval: "weekly"
+    commit-message:
+      prefix: ":robot:"
+  - package-ecosystem: "gomod" # See documentation for possible values
+    directory: "kubelab-backend/" # Location of package manifests
+    schedule:
+      interval: "weekly"
+    commit-message:
+      prefix: ":robot:"
+  # GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    commit-message:
+      prefix: ":seedling:"