chore: added license header

.github/workflows/render-puml-to-svg.yml

@@ -1,4 +1,26 @@
-# Example .github/workflows/add-static-puml-files.yaml in your repo
+###############################################################
+# Copyright (c) 2023 Contributors to the Eclipse Foundation
+# Copyright (c) 2023 Volkswagen AG
+# Copyright (c) 2023 Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
+# (represented by Fraunhofer ISST)
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Apache License, Version 2.0 which is available at
+# https://www.apache.org/licenses/LICENSE-2.0.
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+###############################################################
+---
+
 name: "Render static puml files"
 # Trigger as you want here in example each time a PlantUML file was updated on main branch
 on: