update log4j to 2.17.1

CityDoctorParent/CityDoctorCheckResult/pom.xml

 <project xmlns="http://maven.apache.org/POM/4.0.0"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<groupId>de.hft.stuttgart</groupId>
 		<artifactId>CityDoctorParent</artifactId>
-		<version>3.10.1</version>
+		<version>3.10.2</version>
 	</parent>
 
 	<artifactId>CityDoctorCheckResult</artifactId>

CityDoctorParent/CityDoctorEdge/pom.xml

 <project xmlns="http://maven.apache.org/POM/4.0.0"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<groupId>de.hft.stuttgart</groupId>
 		<artifactId>CityDoctorParent</artifactId>
-		<version>3.10.1</version>
+		<version>3.10.2</version>
 	</parent>
 	<artifactId>CityDoctorEdge</artifactId>
 

CityDoctorParent/CityDoctorModel/pom.xml

 <project xmlns="http://maven.apache.org/POM/4.0.0"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<groupId>de.hft.stuttgart</groupId>
 		<artifactId>CityDoctorParent</artifactId>
-		<version>3.10.1</version>
+		<version>3.10.2</version>
 	</parent>
 
 	<properties>

CityDoctorParent/CityDoctorValidation/pom.xml

 <project xmlns="http://maven.apache.org/POM/4.0.0"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<groupId>de.hft.stuttgart</groupId>
 		<artifactId>CityDoctorParent</artifactId>
-		<version>3.10.1</version>
+		<version>3.10.2</version>
 	</parent>
 	<artifactId>CityDoctorValidation</artifactId>
 	<name>CityDoctorValidation</name>

CityDoctorParent/pom.xml

 <project xmlns="http://maven.apache.org/POM/4.0.0"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>de.hft.stuttgart</groupId>
 	<artifactId>CityDoctorParent</artifactId>
-	<version>3.10.1</version>
+	<version>3.10.2</version>
 	<packaging>pom</packaging>
 	<name>CityDoctorParent</name>
 
@@ -144,13 +144,13 @@
 			<dependency>
 				<groupId>org.apache.logging.log4j</groupId>
 				<artifactId>log4j-api</artifactId>
-				<version>2.15.0</version>
+				<version>2.17.1</version>
 			</dependency>
 			<!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core -->
 			<dependency>
 				<groupId>org.apache.logging.log4j</groupId>
 				<artifactId>log4j-core</artifactId>
-				<version>2.15.0</version>
+				<version>2.17.1</version>
 			</dependency>
 			<dependency>
 				<groupId>org.yaml</groupId>