chore: add a single test to make sonar happy (#5)

Co-authored-by: filipe <[email protected]>

src/test/groovy/liquibase/AwsLicenseServiceTest.groovy

@@ -0,0 +1,13 @@
+package liquibase
+
+import org.junit.jupiter.api.Test
+
+import static org.junit.jupiter.api.Assertions.assertEquals
+
+class AwsLicenseServiceTest {
+
+    @Test
+    void getPriority_returnsMaxInteger() {
+        assertEquals(Integer.MAX_VALUE, new AwsLicenseService().getPriority())
+    }
+}