Employ Eclipse Dash to control 3rd party dependencies

.github/workflows/licensecheck.yml

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+###############################################################################
+# Copyright (c) 2023, 2026 Contributors to Eclipse Foundation
+#
+# This program and the accompanying materials are made available under the
+# terms of the Eclipse Public License 2.0 which is available at
+# https://www.eclipse.org/legal/epl-2.0/.
+#
+# SPDX-License-Identifier: EPL-2.0
+#
+# Contributors:
+#     see git history
+###############################################################################
+# This workflow will check for Maven projects if the licenses of all (transitive) dependencies are vetted.
+
+name: License vetting status check
+
+on:
+  push:
+    branches: 
+      - 'main'
+  pull_request:
+    branches: 
+      - 'main'
+  issue_comment:
+    types: [created]
+
+permissions:
+  pull-requests: write
+
+jobs:
+  call-license-check:
+    uses: eclipse-dash/dash-licenses/.github/workflows/mavenLicenseCheck.yml@c1e285d67462be242b1b1ecfb1ad51e70271d5d9 #master
+    with:
+      projectId: iot.milo
+      javaVersion: 17
+    secrets:
+      gitlabAPIToken: ${{ secrets.GITLAB_API_TOKEN }}