Showheroes: Rename test file (#4253)

Author: CTMBNara

…g/prebid/server/it/ShowheroesbsTest.java …server/it/ShowheroesbsLowercaseTest.javasrc/test/java/org/prebid/server/it/ShowheroesbsTest.java renamed to src/test/java/org/prebid/server/it/ShowheroesbsLowercaseTest.java src/test/java/org/prebid/server/it/ShowheroesbsTest.java renamed to src/test/java/org/prebid/server/it/ShowheroesbsLowercaseTest.java

@@ -15,7 +15,7 @@
 import static com.github.tomakehurst.wiremock.client.WireMock.urlPathEqualTo;
 import static java.util.Collections.singletonList;
 
-public class ShowheroesbsTest extends IntegrationTest {
+public class ShowheroesbsLowercaseTest extends IntegrationTest {
 
     @Autowired
     private PrebidVersionProvider prebidVersionProvider;