Add GitHub Actions for Maven setup, JUnit reporting, and build analysis with SonarCloud.

pom.xml

@@ -42,6 +42,15 @@
         <junit5.version>5.14.2</junit5.version>
         <mockito-junit5.version>5.21.0</mockito-junit5.version>
 
+        <!-- sonarqube -->
+        <sonar.organization>th-schwarz</sonar.organization>
+        <sonar.host.url>https://sonarcloud.io</sonar.host.url>
+        <sonar.sourceEncoding>${file.encoding}</sonar.sourceEncoding>
+        <sonar.projectKey>th-schwarz_CloudflareDNS-java</sonar.projectKey>
+        <sonar.projectName>CloudflareDNS-java</sonar.projectName>
+        <sonar.branch.name>develop</sonar.branch.name>
+        <sonar.test.exclusions>src/test/java/**/*</sonar.test.exclusions>
+
         <lombok-maven-plugin.version>1.18.20.0</lombok-maven-plugin.version>
     </properties>
 
@@ -273,7 +282,6 @@
                     </execution>
                 </executions>
             </plugin>
-
         </plugins>
     </build>
 </project>