build: remove unused testcontainers dependency

modules/apps/vehicle-history-app/src/test/java/com/lingniu/ingest/historyapp/MavenModuleProfileTest.java

@@ -255,6 +255,21 @@ class MavenModuleProfileTest {
                 .isFalse();
     }
 
+    @Test
+    void buildSurfaceDoesNotManageTestcontainersWhenKafkaTestsUseInMemoryFakes() throws Exception {
+        Document pom = rootPom();
+        Document kafkaSinkPom = modulePom("modules/sinks/sink-kafka/pom.xml");
+
+        assertThat(hasProjectProperty(pom, "testcontainers.version"))
+                .isFalse();
+        assertThat(hasDependency(pom, "org.testcontainers", "testcontainers-bom"))
+                .isFalse();
+        assertThat(hasDependency(kafkaSinkPom, "org.testcontainers", "kafka"))
+                .isFalse();
+        assertThat(javaSourcesContain("import org." + "testcontainers"))
+                .isFalse();
+    }
+
     @Test
     void productionDocsDoNotAdvertiseMemorySessionStore() throws Exception {
         String runbook = Files.readString(repositoryRoot()

modules/sinks/sink-kafka/pom.xml

@@ -49,11 +49,6 @@
             <groupId>io.github.resilience4j</groupId>
             <artifactId>resilience4j-circuitbreaker</artifactId>
         </dependency>
-        <dependency>
-            <groupId>org.testcontainers</groupId>
-            <artifactId>kafka</artifactId>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>