Add Dependabot configuration for all dependencies

Signed-off-by: Bryan Frimin <bryan@getprobo.com>

.github/workflows/dependabot.yaml

@@ -0,0 +1,41 @@
+version: 2
+updates:
+  # Go modules
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+    open-pull-requests-limit: 10
+    groups:
+      go-dependencies:
+        patterns:
+          - "*"
+
+  # npm packages (root)
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+    open-pull-requests-limit: 10
+    groups:
+      npm-dependencies:
+        patterns:
+          - "*"
+
+  # Docker base images
+  - package-ecosystem: "docker"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+    open-pull-requests-limit: 5
+
+  # GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+    open-pull-requests-limit: 5
+    groups:
+      github-actions:
+        patterns:
+          - "*"