[Misc] Improve build reproducibility using npm ci instead of npm install

See https://docs.npmjs.com/cli/v7/commands/npm-ci

xwiki-platform-core/xwiki-platform-livedata/xwiki-platform-livedata-webjar/pom.xml

@@ -167,6 +167,9 @@
             <goals>
               <goal>npm</goal>
             </goals>
+            <configuration>
+              <arguments>ci</arguments>
+            </configuration>
           </execution>
           <execution>
             <id>npm-run-build</id>