GH-4452: Add Dash license-check CI (#4453)

.github/workflows/dash-license.yml

@@ -0,0 +1,30 @@
+name: dash license
+
+on:
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  license-check:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up JDK
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '19'
+      - name: Cache local Maven repository
+        uses: actions/cache@v3
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-jdk19-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-jdk19-maven-
+      - name: Run license-check
+        run: mvn -B -Plicence-check org.eclipse.dash:license-tool-plugin:license-check -Ddash.summary=DEPENDENCIES
+      - name: Print Dash Summary
+        if: always()
+        run: cat DEPENDENCIES

pom.xml

@@ -243,6 +243,32 @@
 				</repository>
 			</repositories>
 		</profile>
+		<profile>
+			<id>licence-check</id>
+			<pluginRepositories>
+				<pluginRepository>
+					<id>dash-licenses-snapshots</id>
+					<url>https://repo.eclipse.org/content/repositories/dash-licenses-snapshots/</url>
+					<snapshots>
+						<enabled>true</enabled>
+					</snapshots>
+				</pluginRepository>
+			</pluginRepositories>
+			<build>
+				<plugins>
+					<plugin>
+						<groupId>org.eclipse.dash</groupId>
+						<artifactId>license-tool-plugin</artifactId>
+						<version>0.0.1-SNAPSHOT</version>
+						<configuration>
+							<failWhenReviewNeeded>true</failWhenReviewNeeded>
+							<!-- TODO: maven/mavencentral/org.openjdk.jmh/jmh-generator-annprocess/1.35, GPL-2.0-only WITH Classpath-exception-2.0, restricted, #3045 -->
+							<excludeGroupIds>org.openjdk.jmh</excludeGroupIds>
+						</configuration>
+					</plugin>
+				</plugins>
+			</build>
+		</profile>
 		<profile>
 			<id>formatting</id>
 			<activation>