Upgrade setup-go action from v5 to v6

Signed-off-by: Christian Mehlmauer <[email protected]>

.github/workflows/update.yml

@@ -0,0 +1,34 @@
+name: Update Dependencies
+
+on:
+  schedule:
+    - cron: '0 4 * * *' # Runs daily at 04:00 UTC
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+jobs:
+  update-dependencies:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          ref: dev
+
+      - name: Set up Go
+        uses: actions/setup-go@v6
+        with:
+          go-version: 'stable'
+
+      - name: Update all dependencies
+        run: |
+          go get -u ./...
+          go mod tidy
+
+      - name: Commit and push changes
+        uses: stefanzweifel/git-auto-commit-action@v5
+        with:
+          commit_message: "chore: update dependencies [automated]"
+          branch: dev