Use secure connection to npmjs.org (#958)

apm-webapp/pom.xml

@@ -14,6 +14,7 @@
   ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   ~ See the License for the specific language governing permissions and
   ~ limitations under the License.
+
   ~
   -->
 
@@ -125,7 +126,7 @@
                             <goal>npm</goal>
                         </goals>
                         <configuration>
-                            <arguments>install --registry=http://registry.npmjs.org/</arguments>
+                            <arguments>install --registry=https://registry.npmjs.org/</arguments>
                         </configuration>
                     </execution>
                     <execution>
@@ -171,4 +172,4 @@
             </plugin>
         </plugins>
     </build>
-</project>
\ No newline at end of file
+</project>