Enable Sonar & Improve Test coverage of DFC

Issue-ID: NONRTRIC-874
Signed-off-by: ambrishest <ambrish.singh@est.tech>
Change-Id: I83a3c66bc7a1a9c5beb0d27acf342d49056fe24f
diff --git a/datafilecollector/pom.xml b/datafilecollector/pom.xml
index 4b56276..c9fa6c6 100644
--- a/datafilecollector/pom.xml
+++ b/datafilecollector/pom.xml
@@ -38,6 +38,7 @@
         <springdoc.version>2.0.2</springdoc.version>
         <springdoc.openapi-ui.version>1.6.14</springdoc.openapi-ui.version>
         <exec.skip>true</exec.skip>
+        <sonar-maven-plugin.version>3.7.0.1746</sonar-maven-plugin.version>
     </properties>
     <dependencies>
         <dependency>
@@ -276,6 +277,11 @@
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <groupId>org.sonarsource.scanner.maven</groupId>
+                <artifactId>sonar-maven-plugin</artifactId>
+                <version>${sonar-maven-plugin.version}</version>
+            </plugin>
         </plugins>
     </build>
 </project>