chore(deps): update dependabot configuration for Go modules

Added Go modules configuration for the /example/ directory to ensure
weekly updates for direct dependencies, including security patterns
and commit message prefixing.

Author: mrz1836

.github/dependabot.yml

@@ -56,7 +56,36 @@ updates:
       include: "scope"
 
   # ──────────────────────────────────────────────────────────────
-  # 2. GitHub Actions Workflows
+  # 2. Go Modules (go.mod / go.sum)
+  # ──────────────────────────────────────────────────────────────
+  - package-ecosystem: "gomod"
+    directory: "/example/"
+    target-branch: "master"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "09:00"
+      timezone: "America/New_York"
+    allow:
+      - dependency-type: "direct"
+    groups:
+      security-deps:
+        patterns:
+          - "*crypto*"
+          - "*security*"
+          - "*auth*"
+          - "*jwt*"
+          - "*oauth*"
+        update-types: ["minor", "patch"]
+    open-pull-requests-limit: 10
+    assignees: ["mrz1836"]
+    labels: ["chore", "dependencies", "gomod"]
+    commit-message:
+      prefix: "chore"
+      include: "scope"
+
+  # ──────────────────────────────────────────────────────────────
+  # 3. GitHub Actions Workflows
   # ──────────────────────────────────────────────────────────────
   - package-ecosystem: "github-actions"
     directory: "/"
@@ -79,7 +108,7 @@ updates:
       include: "scope"
 
   # ──────────────────────────────────────────────────────────────
-  # 3. DevContainer (devcontainer.json : base image + features)
+  # 4. DevContainer (devcontainer.json : base image + features)
   # ──────────────────────────────────────────────────────────────
   - package-ecosystem: "devcontainers"
     directory: "/"