[FIX] product: product labels report, missing product name

In 8.0, the products labels report is a non-customizable
xml report. Among others, the product name is displayed.

In saas-6, this report has been converted into
a customizable, qweb report. Unfortunately, the product
name has been forgotten during the convertion.

opw-648643

addons/product/views/report_productlabel.xml

@@ -24,6 +24,7 @@
                                     <img t-if="product.barcode" t-att-src="'/report/barcode/?type=%s&amp;value=%s&amp;width=%s&amp;height=%s' % ('EAN13', product.barcode, 600, 100)" style="width:100%;height:20%;"/>
                                 </td>
                                 <td>
+                                    <strong t-field="product.name"/>
                                     <strong t-esc="', '.join(map(lambda x: x.name, product.attribute_value_ids))"/>
                                 </td>
                             </tr>