fix wrongly named env var

Signed-off-by: Sebastian Schüpbach <sebastian.schuepbach@unibas.ch>

src/main/resources/app.yml

 app:
-  countInputTopic: ${COUNT_INPUT_TOPIC:?system}
+  countTopicIn: ${COUNT_TOPIC_IN:?system}
 kafka:
   streams:
     bootstrap.servers: ${KAFKA_BOOTSTRAP_SERVERS:?system}

src/main/scala/ch/memobase/SettingsFromFile.scala

@@ -45,7 +45,7 @@ trait Settings {
  */
 object SettingsFromFile extends Settings {
   private val settings = new SettingsLoader(List(
-    "countInputTopic"
+    "countTopicIn"
   ).asJava,
     "app.yml",
     false,
@@ -57,7 +57,7 @@ object SettingsFromFile extends Settings {
 
   def getReportingInputTopic: String = settings.getInputTopic
 
-  override def getCountInputTopic: String = settings.getAppSettings.getProperty("countInputTopic")
+  override def getCountInputTopic: String = settings.getAppSettings.getProperty("countTopicIn")
 
   def getKafkaOutputTopic: String = settings.getOutputTopic