chore: add release template

Author: mxmehl

.github/release.yml

@@ -0,0 +1,17 @@
+# SPDX-FileCopyrightText: 2025 DB Systel GmbH
+#
+# SPDX-License-Identifier: Apache-2.0
+
+changelog:
+  categories:
+    - title: Features and Fixes
+      labels:
+        - "*"
+      exclude:
+        labels:
+          - dependencies
+          - Renovate
+    - title: Dependencies
+      labels:
+        - dependencies
+        - Renovate